From cec468d78a57b2858d3b5c03ccb5c5c1928d628c Mon Sep 17 00:00:00 2001
From: hjk <hjk@qt.io>
Date: Fri, 18 Sep 2020 12:11:40 +0200
Subject: [PATCH] Utils/ProjectExplorer: Move re-usabled bits of aspects to
 Utils

Classes involved are BaseAspect and some derived classes,
LayoutBuilder and VariableChooser.

This is mostly mechanical, with various include/using changes
to make it compile.

Change-Id: I624a457f3555f102e541c4c71e33a9423af32250
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
---
 src/libs/utils/CMakeLists.txt                 |   3 +
 .../utils/aspects.cpp}                        | 122 ++++++++----
 .../utils/aspects.h}                          | 134 ++++++++++---
 src/libs/utils/layoutbuilder.cpp              | 160 ++++++++++++++++
 src/libs/utils/layoutbuilder.h                |  92 +++++++++
 src/libs/utils/macroexpander.cpp              |   2 +-
 src/libs/utils/utils-lib.pri                  |  10 +-
 src/libs/utils/utils.qbs                      |   6 +
 .../utils}/variablechooser.cpp                |  23 +--
 .../utils}/variablechooser.h                  |  10 +-
 .../android/androidrunconfiguration.cpp       |   4 +-
 src/plugins/android/androidrunconfiguration.h |   4 +-
 .../autotoolsprojectmanager/autogenstep.cpp   |   6 +-
 .../autoreconfstep.cpp                        |   7 +-
 .../autotoolsprojectmanager/configurestep.cpp |   8 +-
 ...aremetaldeviceconfigurationwizardpages.cpp |   2 +-
 .../gdb/eblinkgdbserverprovider.cpp           |   5 +-
 .../gdb/jlinkgdbserverprovider.cpp            |   7 +-
 .../gdb/openocdgdbserverprovider.cpp          |   5 +-
 .../gdb/stlinkutilgdbserverprovider.cpp       |   5 +-
 src/plugins/boot2qt/qdbmakedefaultappstep.cpp |   1 +
 .../builddirparameters.cpp                    |   1 +
 .../cmakebuildconfiguration.h                 |   2 +-
 .../cmakebuildsettingswidget.cpp              |   4 +-
 .../cmakeprojectmanager/cmakebuildstep.cpp    |   1 +
 .../cmakeprojectmanager/cmakebuildstep.h      |  11 +-
 .../cmakekitinformation.cpp                   |   4 +-
 src/plugins/coreplugin/CMakeLists.txt         |   1 -
 src/plugins/coreplugin/coreplugin.pro         |   2 -
 src/plugins/coreplugin/coreplugin.qbs         |   2 -
 .../coreplugin/dialogs/externaltoolconfig.cpp |   2 +-
 src/plugins/cppcheck/cppcheckoptions.cpp      |   4 +-
 src/plugins/debugger/commonoptionspage.cpp    |   2 +-
 .../debuggerrunconfigurationaspect.cpp        |   7 +-
 .../debugger/debuggerrunconfigurationaspect.h |   4 +-
 .../debuggersourcepathmappingwidget.cpp       |   7 +-
 src/plugins/debugger/gdb/gdboptionspage.cpp   |   2 +-
 .../genericbuildconfiguration.cpp             |   2 +-
 .../incredibuild/buildconsolebuildstep.cpp    |   3 +-
 .../incredibuild/commandbuilderaspect.cpp     |   1 +
 .../incredibuild/commandbuilderaspect.h       |   7 +-
 .../incredibuild/ibconsolebuildstep.cpp       |   4 +-
 src/plugins/ios/iosbuildconfiguration.cpp     |   1 +
 src/plugins/ios/iosbuildconfiguration.h       |   6 +-
 src/plugins/ios/iosrunconfiguration.cpp       |   5 +-
 .../languageclient/languageclientsettings.cpp |   6 +-
 .../mcusupport/mcusupportrunconfiguration.cpp |   4 +-
 .../buildoptions/mesonbuildsettingswidget.cpp |   6 +-
 src/plugins/nim/project/nimbletaskstep.cpp    |   3 +-
 .../nim/project/nimbuildconfiguration.cpp     |   3 +-
 .../nim/project/nimcompilercleanstep.cpp      |   3 +-
 src/plugins/projectexplorer/CMakeLists.txt    |   1 -
 src/plugins/projectexplorer/buildaspects.cpp  |   1 +
 src/plugins/projectexplorer/buildaspects.h    |   9 +-
 .../projectexplorer/buildconfiguration.cpp    |   5 +-
 .../projectexplorer/buildpropertiessettings.h |  10 +-
 .../buildpropertiessettingspage.cpp           |   6 +-
 src/plugins/projectexplorer/buildstep.cpp     |  10 +-
 .../customexecutablerunconfiguration.cpp      |   2 +-
 src/plugins/projectexplorer/customparser.h    |   2 +-
 .../projectexplorer/environmentaspect.h       |   3 +-
 .../projectexplorer/kitinformation.cpp        |   4 +-
 .../kitmanagerconfigwidget.cpp                |   8 +-
 src/plugins/projectexplorer/makestep.cpp      |   8 +-
 src/plugins/projectexplorer/makestep.h        |  24 +--
 src/plugins/projectexplorer/processstep.cpp   |   2 +-
 .../projectexplorer/projectconfiguration.cpp  | 177 +-----------------
 .../projectexplorer/projectconfiguration.h    | 145 +-------------
 .../projectexplorer/projectexplorer.pro       |   2 -
 .../projectexplorer/projectexplorer.qbs       |   1 -
 .../projectexplorer/runconfiguration.cpp      |   9 +-
 .../projectexplorer/runconfiguration.h        |   5 +-
 .../runconfigurationaspects.cpp               |   5 +-
 .../projectexplorer/runconfigurationaspects.h |  33 ++--
 src/plugins/projectexplorer/runcontrol.cpp    |   4 +-
 src/plugins/projectexplorer/runcontrol.h      |   2 +-
 .../runsettingspropertiespage.cpp             |   2 +-
 src/plugins/python/pythonrunconfiguration.cpp |   5 +-
 .../qbsprojectmanager/qbsbuildconfiguration.h |   8 +-
 .../qbsprojectmanager/qbsbuildstep.cpp        |   4 +-
 .../qbsprojectmanager/qbscleanstep.cpp        |   1 +
 src/plugins/qbsprojectmanager/qbscleanstep.h  |   8 +-
 .../qbsprojectmanager/qbsinstallstep.cpp      |   2 +
 .../qbsprojectmanager/qbsinstallstep.h        |  10 +-
 .../qmakeprojectmanager/makefileparse.cpp     |  10 +-
 .../qmakebuildconfiguration.h                 |   9 +-
 .../qmakeprojectmanager/qmakemakestep.cpp     |   3 +-
 src/plugins/qmakeprojectmanager/qmakestep.cpp |   6 +-
 src/plugins/qmakeprojectmanager/qmakestep.h   |  14 +-
 .../qmlprojectmanager/qmlmainfileaspect.cpp   |   4 +-
 .../qmlprojectmanager/qmlmainfileaspect.h     |   4 +-
 .../qmlmultilanguageaspect.h                  |   2 +-
 .../qmlprojectrunconfiguration.cpp            |   2 +-
 src/plugins/qnx/qnxrunconfiguration.h         |   2 +-
 src/plugins/qtsupport/qtbuildaspects.cpp      |   5 +-
 src/plugins/qtsupport/qtbuildaspects.h        |  14 +-
 src/plugins/qtsupport/qtoptionspage.cpp       |   4 +-
 .../remotelinux/genericdirectuploadstep.cpp   |   1 +
 src/plugins/remotelinux/makeinstallstep.h     |   8 +-
 .../remotelinuxcheckforfreediskspacestep.cpp  |   3 +-
 ...remotelinuxcustomcommanddeploymentstep.cpp |   1 +
 .../remotelinuxx11forwardingaspect.h          |   6 +-
 .../remotelinux/tarpackagecreationstep.cpp    |   1 +
 .../remotelinux/tarpackagecreationstep.h      |   7 +-
 .../webassemblyrunconfigurationaspects.cpp    |   7 +-
 .../webassemblyrunconfigurationaspects.h      |   4 +-
 .../winrt/winrtpackagedeploymentstep.cpp      |   5 +-
 src/plugins/winrt/winrtrunconfiguration.h     |   6 +-
 108 files changed, 751 insertions(+), 621 deletions(-)
 rename src/{plugins/projectexplorer/projectconfigurationaspects.cpp => libs/utils/aspects.cpp} (92%)
 rename src/{plugins/projectexplorer/projectconfigurationaspects.h => libs/utils/aspects.h} (71%)
 create mode 100644 src/libs/utils/layoutbuilder.cpp
 create mode 100644 src/libs/utils/layoutbuilder.h
 rename src/{plugins/coreplugin => libs/utils}/variablechooser.cpp (97%)
 rename src/{plugins/coreplugin => libs/utils}/variablechooser.h (92%)

diff --git a/src/libs/utils/CMakeLists.txt b/src/libs/utils/CMakeLists.txt
index 4bfb447cb9e..be1f49f88d6 100644
--- a/src/libs/utils/CMakeLists.txt
+++ b/src/libs/utils/CMakeLists.txt
@@ -14,6 +14,7 @@ add_qtc_library(Utils
     ansiescapecodehandler.cpp ansiescapecodehandler.h
     appmainwindow.cpp appmainwindow.h
     archive.cpp archive.h
+    aspects.cpp aspects.h
     basetreeview.cpp basetreeview.h
     benchmarker.cpp benchmarker.h
     buildablehelperlibrary.cpp buildablehelperlibrary.h
@@ -73,6 +74,7 @@ add_qtc_library(Utils
     itemviews.cpp itemviews.h
     json.cpp json.h
     jsontreeitem.cpp jsontreeitem.h
+    layoutbuilder.cpp layoutbuilder.h
     linecolumn.h
     link.h
     listmodel.h
@@ -169,6 +171,7 @@ add_qtc_library(Utils
     utils.qrc
     utils_global.h
     utilsicons.cpp utilsicons.h
+    variablechooser.cpp variablechooser.h
     variant.h
     winutils.cpp winutils.h
     wizard.cpp wizard.h
diff --git a/src/plugins/projectexplorer/projectconfigurationaspects.cpp b/src/libs/utils/aspects.cpp
similarity index 92%
rename from src/plugins/projectexplorer/projectconfigurationaspects.cpp
rename to src/libs/utils/aspects.cpp
index d5d45e51dc2..712d92299c8 100644
--- a/src/plugins/projectexplorer/projectconfigurationaspects.cpp
+++ b/src/libs/utils/aspects.cpp
@@ -23,35 +23,77 @@
 **
 ****************************************************************************/
 
-#include "projectconfigurationaspects.h"
+#include "aspects.h"
 
-#include "environmentaspect.h"
-#include "project.h"
-#include "projectexplorer.h"
-#include "projectexplorersettings.h"
-#include "runconfiguration.h"
-#include "target.h"
-
-#include <coreplugin/variablechooser.h>
-#include <utils/utilsicons.h>
-#include <utils/fancylineedit.h>
-#include <utils/pathchooser.h>
-#include <utils/qtcprocess.h>
+#include "algorithm.h"
+#include "fancylineedit.h"
+#include "layoutbuilder.h"
+#include "pathchooser.h"
+#include "qtcassert.h"
+#include "qtcprocess.h"
+#include "utilsicons.h"
+#include "variablechooser.h"
 
+#include <QButtonGroup>
 #include <QCheckBox>
 #include <QComboBox>
+#include <QFormLayout>
 #include <QLabel>
 #include <QLineEdit>
-#include <QFormLayout>
-#include <QSpinBox>
-#include <QToolButton>
-#include <QTextEdit>
+#include <QPointer>
 #include <QRadioButton>
-#include <QButtonGroup>
+#include <QSpinBox>
+#include <QTextEdit>
+#include <QToolButton>
 
-using namespace Utils;
+namespace Utils {
+
+// BaseAspect
+
+BaseAspect::BaseAspect() = default;
+
+BaseAspect::~BaseAspect() = default;
+
+void BaseAspect::setConfigWidgetCreator(const ConfigWidgetCreator &configWidgetCreator)
+{
+    m_configWidgetCreator = configWidgetCreator;
+}
+
+QWidget *BaseAspect::createConfigWidget() const
+{
+    return m_configWidgetCreator ? m_configWidgetCreator() : nullptr;
+}
+
+void BaseAspect::addToLayout(LayoutBuilder &)
+{
+}
+
+// BaseAspects
+
+BaseAspects::BaseAspects() = default;
+
+BaseAspects::~BaseAspects()
+{
+    qDeleteAll(base());
+}
+
+BaseAspect *BaseAspects::aspect(Utils::Id id) const
+{
+    return Utils::findOrDefault(base(), Utils::equal(&BaseAspect::id, id));
+}
+
+void BaseAspects::fromMap(const QVariantMap &map) const
+{
+    for (BaseAspect *aspect : *this)
+        aspect->fromMap(map);
+}
+
+void BaseAspects::toMap(QVariantMap &map) const
+{
+    for (BaseAspect *aspect : *this)
+        aspect->toMap(map);
+}
 
-namespace ProjectExplorer {
 namespace Internal {
 
 class BoolAspectPrivate
@@ -108,9 +150,9 @@ public:
     QPointer<FancyLineEdit> m_lineEditDisplay;
     QPointer<PathChooser> m_pathChooserDisplay;
     QPointer<QTextEdit> m_textEditDisplay;
-    Utils::MacroExpanderProvider m_expanderProvider;
+    MacroExpanderProvider m_expanderProvider;
     QPixmap m_labelPixmap;
-    Utils::FilePath m_baseFileName;
+    FilePath m_baseFileName;
     StringAspect::ValueAcceptor m_valueAcceptor;
     bool m_readOnly = false;
     bool m_showToolTipOnLabel = false;
@@ -153,7 +195,7 @@ public:
 class AspectContainerPrivate
 {
 public:
-    QList<ProjectConfigurationAspect *> m_items;
+    QList<BaseAspect *> m_items;
 };
 
 class TextDisplayPrivate
@@ -168,7 +210,7 @@ public:
 } // Internal
 
 /*!
-    \class ProjectExplorer::StringAspect
+    \class Utils::StringAspect
 */
 
 StringAspect::StringAspect()
@@ -382,17 +424,19 @@ void StringAspect::addToLayout(LayoutBuilder &builder)
         d->m_label->setPixmap(d->m_labelPixmap);
     builder.addItem(d->m_label.data());
 
+    QWidget *parentWidget = builder.layout()->parentWidget();
+
     const auto useMacroExpander = [this, &builder](QWidget *w) {
         if (!d->m_expanderProvider)
             return;
-        const auto chooser = new Core::VariableChooser(builder.layout()->parentWidget());
+        const auto chooser = new VariableChooser(builder.layout()->parentWidget());
         chooser->addSupportedWidget(w);
         chooser->addMacroExpanderProvider(d->m_expanderProvider);
     };
 
     switch (d->m_displayStyle) {
     case PathChooserDisplay:
-        d->m_pathChooserDisplay = new PathChooser;
+        d->m_pathChooserDisplay = new PathChooser(parentWidget);
         d->m_pathChooserDisplay->setExpectedKind(d->m_expectedKind);
         if (!d->m_historyCompleterKey.isEmpty())
             d->m_pathChooserDisplay->setHistoryCompleter(d->m_historyCompleterKey);
@@ -501,7 +545,7 @@ void StringAspect::makeCheckable(CheckBoxPlacement checkBoxPlacement,
 }
 
 /*!
-    \class ProjectExplorer::BoolAspect
+    \class Utils::BoolAspect
 */
 
 BoolAspect::BoolAspect(const QString &settingsKey)
@@ -592,7 +636,7 @@ void BoolAspect::setEnabled(bool enabled)
 }
 
 /*!
-    \class ProjectExplorer::SelectionAspect
+    \class Utils::SelectionAspect
 */
 
 SelectionAspect::SelectionAspect()
@@ -706,7 +750,7 @@ void SelectionAspect::addOption(const QString &displayName, const QString &toolT
 }
 
 /*!
-    \class ProjectExplorer::IntegerAspect
+    \class Utils::IntegerAspect
 */
 
 // IntegerAspect
@@ -821,7 +865,7 @@ void IntegerAspect::setToolTip(const QString &tooltip)
 }
 
 /*!
-    \class ProjectExplorer::BaseTristateAspect
+    \class Utils::BaseTristateAspect
 */
 
 TriStateAspect::TriStateAspect()
@@ -856,7 +900,7 @@ TriState TriState::fromVariant(const QVariant &variant)
 
 
 /*!
-    \class ProjectExplorer::StringListAspect
+    \class Utils::StringListAspect
 */
 
 StringListAspect::StringListAspect()
@@ -892,7 +936,7 @@ void StringListAspect::setValue(const QStringList &value)
 }
 
 /*!
-    \class ProjectExplorer::TextDisplay
+    \class Utils::TextDisplay
 */
 
 TextDisplay::TextDisplay(const QString &message, InfoLabel::InfoType type)
@@ -919,7 +963,7 @@ void TextDisplay::addToLayout(LayoutBuilder &builder)
 
 void TextDisplay::setVisible(bool visible)
 {
-    ProjectConfigurationAspect::setVisible(visible);
+    BaseAspect::setVisible(visible);
     if (d->m_label)
         d->m_label->setVisible(visible);
 }
@@ -939,7 +983,7 @@ void TextDisplay::setIconType(InfoLabel::InfoType t)
 }
 
 /*!
-    \class ProjectExplorer::AspectContainer
+    \class Utils::AspectContainer
 */
 
 AspectContainer::AspectContainer()
@@ -948,14 +992,14 @@ AspectContainer::AspectContainer()
 
 AspectContainer::~AspectContainer() = default;
 
-void AspectContainer::addAspectHelper(ProjectConfigurationAspect *aspect)
+void AspectContainer::addAspectHelper(BaseAspect *aspect)
 {
     d->m_items.append(aspect);
 }
 
 void AspectContainer::addToLayout(LayoutBuilder &builder)
 {
-    for (ProjectConfigurationAspect *aspect : d->m_items) {
+    for (BaseAspect *aspect : d->m_items) {
         if (aspect->isVisible())
             aspect->addToLayout(builder);
     }
@@ -963,14 +1007,14 @@ void AspectContainer::addToLayout(LayoutBuilder &builder)
 
 void AspectContainer::fromMap(const QVariantMap &map)
 {
-    for (ProjectConfigurationAspect *aspect : d->m_items)
+    for (BaseAspect *aspect : d->m_items)
         aspect->fromMap(map);
 }
 
 void AspectContainer::toMap(QVariantMap &map) const
 {
-    for (ProjectConfigurationAspect *aspect : d->m_items)
+    for (BaseAspect *aspect : d->m_items)
         aspect->toMap(map);
 }
 
-} // namespace ProjectExplorer
+} // namespace Utils
diff --git a/src/plugins/projectexplorer/projectconfigurationaspects.h b/src/libs/utils/aspects.h
similarity index 71%
rename from src/plugins/projectexplorer/projectconfigurationaspects.h
rename to src/libs/utils/aspects.h
index df0dc94eaa0..0ba0a5ba43a 100644
--- a/src/plugins/projectexplorer/projectconfigurationaspects.h
+++ b/src/libs/utils/aspects.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2018 The Qt Company Ltd.
+** Copyright (C) 2020 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of Qt Creator.
@@ -25,17 +25,19 @@
 
 #pragma once
 
-#include "projectconfiguration.h"
-#include "environmentaspect.h"
-
-#include <utils/fileutils.h>
-#include <utils/infolabel.h>
-#include <utils/macroexpander.h>
-#include <utils/pathchooser.h>
+#include "fileutils.h"
+#include "id.h"
+#include "infolabel.h"
+#include "macroexpander.h"
+#include "optional.h"
+#include "pathchooser.h"
 
 #include <memory>
 
-namespace ProjectExplorer {
+namespace Utils {
+
+class BaseAspects;
+class LayoutBuilder;
 
 namespace Internal {
 class AspectContainerPrivate;
@@ -47,7 +49,91 @@ class StringListAspectPrivate;
 class TextDisplayPrivate;
 } // Internal
 
-class PROJECTEXPLORER_EXPORT BoolAspect : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT BaseAspect : public QObject
+{
+    Q_OBJECT
+
+public:
+    BaseAspect();
+    ~BaseAspect() override;
+
+    void setId(Utils::Id id) { m_id = id; }
+    void setDisplayName(const QString &displayName) { m_displayName = displayName; }
+    void setSettingsKey(const QString &settingsKey) { m_settingsKey = settingsKey; }
+
+    Utils::Id id() const { return m_id; }
+    QString displayName() const { return m_displayName; }
+    QString settingsKey() const { return  m_settingsKey; }
+
+    bool isVisible() const { return m_visible; }
+    void setVisible(bool visible) { m_visible = visible; }
+
+    using ConfigWidgetCreator = std::function<QWidget *()>;
+    void setConfigWidgetCreator(const ConfigWidgetCreator &configWidgetCreator);
+    QWidget *createConfigWidget() const;
+
+    virtual void fromMap(const QVariantMap &) {}
+    virtual void toMap(QVariantMap &) const {}
+    virtual void acquaintSiblings(const BaseAspects &) {}
+
+    virtual void addToLayout(LayoutBuilder &builder);
+
+signals:
+    void changed();
+
+protected:
+    virtual void setVisibleDynamic(bool visible) { Q_UNUSED(visible) } // TODO: Better name? Merge with setVisible() somehow?
+
+    Utils::Id m_id;
+    QString m_displayName;
+    QString m_settingsKey; // Name of data in settings.
+    bool m_visible = true;
+    ConfigWidgetCreator m_configWidgetCreator;
+};
+
+class QTCREATOR_UTILS_EXPORT BaseAspects
+        : private QList<BaseAspect *>
+{
+    using Base = QList<BaseAspect *>;
+
+    BaseAspects(const BaseAspects &) = delete;
+    BaseAspects &operator=(const BaseAspects &) = delete;
+
+public:
+    BaseAspects();
+    ~BaseAspects();
+
+    template <class Aspect, typename ...Args>
+    Aspect *addAspect(Args && ...args)
+    {
+        auto aspect = new Aspect(args...);
+        append(aspect);
+        return aspect;
+    }
+
+    BaseAspect *aspect(Utils::Id id) const;
+
+    template <typename T> T *aspect() const
+    {
+        for (BaseAspect *aspect : *this)
+            if (T *result = qobject_cast<T *>(aspect))
+                return result;
+        return nullptr;
+    }
+
+    void fromMap(const QVariantMap &map) const;
+    void toMap(QVariantMap &map) const;
+
+    using Base::append;
+    using Base::begin;
+    using Base::end;
+
+private:
+    Base &base() { return *this; }
+    const Base &base() const { return *this; }
+};
+
+class QTCREATOR_UTILS_EXPORT BoolAspect : public BaseAspect
 {
     Q_OBJECT
 
@@ -76,7 +162,7 @@ private:
     std::unique_ptr<Internal::BoolAspectPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT SelectionAspect : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT SelectionAspect : public BaseAspect
 {
     Q_OBJECT
 
@@ -111,7 +197,7 @@ private:
     std::unique_ptr<Internal::SelectionAspectPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT StringAspect : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT StringAspect : public BaseAspect
 {
     Q_OBJECT
 
@@ -176,7 +262,7 @@ private:
     std::unique_ptr<Internal::StringAspectPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT IntegerAspect : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT IntegerAspect : public BaseAspect
 {
     Q_OBJECT
 
@@ -206,7 +292,7 @@ private:
     std::unique_ptr<Internal::IntegerAspectPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT TriState
+class QTCREATOR_UTILS_EXPORT TriState
 {
     enum Value { EnabledValue, DisabledValue, DefaultValue };
     explicit TriState(Value v) : m_value(v) {}
@@ -228,7 +314,7 @@ private:
     Value m_value = DefaultValue;
 };
 
-class PROJECTEXPLORER_EXPORT TriStateAspect : public SelectionAspect
+class QTCREATOR_UTILS_EXPORT TriStateAspect : public SelectionAspect
 {
     Q_OBJECT
 public:
@@ -238,7 +324,7 @@ public:
     void setSetting(TriState setting);
 };
 
-class PROJECTEXPLORER_EXPORT StringListAspect : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT StringListAspect : public BaseAspect
 {
     Q_OBJECT
 
@@ -258,7 +344,7 @@ private:
     std::unique_ptr<Internal::StringListAspectPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT TextDisplay : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT TextDisplay : public BaseAspect
 {
     Q_OBJECT
 
@@ -277,7 +363,7 @@ private:
     std::unique_ptr<Internal::TextDisplayPrivate> d;
 };
 
-class PROJECTEXPLORER_EXPORT AspectContainer : public ProjectConfigurationAspect
+class QTCREATOR_UTILS_EXPORT AspectContainer : public BaseAspect
 {
     Q_OBJECT
 
@@ -299,17 +385,9 @@ public:
     void toMap(QVariantMap &map) const override;
 
 private:
-    void addAspectHelper(ProjectConfigurationAspect *aspect);
+    void addAspectHelper(BaseAspect *aspect);
 
     std::unique_ptr<Internal::AspectContainerPrivate> d;
 };
 
-// FIXME: For migration. Remove after 4.15
-using BaseBoolAspect = BoolAspect;
-using BaseIntegerAspect = IntegerAspect;
-using BaseSelectionAspect = SelectionAspect;
-using BaseStringAspect = StringAspect;
-using BaseStringListAspect = StringListAspect;
-using BaseStringListAspect = StringListAspect;
-
-} // namespace ProjectExplorer
+} // namespace Utils
diff --git a/src/libs/utils/layoutbuilder.cpp b/src/libs/utils/layoutbuilder.cpp
new file mode 100644
index 00000000000..3171ae210fa
--- /dev/null
+++ b/src/libs/utils/layoutbuilder.cpp
@@ -0,0 +1,160 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "layoutbuilder.h"
+
+#include <utils/algorithm.h>
+#include <utils/aspects.h>
+#include <utils/qtcassert.h>
+
+#include <QFormLayout>
+#include <QGridLayout>
+#include <QWidget>
+
+namespace Utils {
+
+LayoutBuilder::LayoutBuilder(QWidget *parent, LayoutType layoutType)
+{
+    if (layoutType == FormLayout) {
+        m_formLayout = new QFormLayout(parent);
+        m_formLayout->setContentsMargins(0, 0, 0, 0);
+        m_formLayout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
+    } else {
+        m_gridLayout = new QGridLayout(parent);
+        m_gridLayout->setContentsMargins(0, 0, 0, 0);
+    }
+}
+
+LayoutBuilder::LayoutBuilder(QLayout *layout)
+{
+    if (auto fl = qobject_cast<QFormLayout *>(layout)) {
+        m_formLayout = fl;
+    } else if (auto grid = qobject_cast<QGridLayout *>(layout)) {
+        m_gridLayout = grid;
+        m_currentGridRow = grid->rowCount();
+        m_currentGridColumn = 0;
+    }
+}
+
+LayoutBuilder::~LayoutBuilder()
+{
+    flushPendingFormItems();
+}
+
+LayoutBuilder &LayoutBuilder::startNewRow()
+{
+    if (m_formLayout)
+        flushPendingFormItems();
+    if (m_gridLayout) {
+        if (m_currentGridColumn != 0) {
+            ++m_currentGridRow;
+            m_currentGridColumn = 0;
+        }
+    }
+    return *this;
+}
+
+LayoutBuilder &LayoutBuilder::addRow(const LayoutItem &item)
+{
+    startNewRow();
+    addItem(item);
+    return *this;
+}
+
+void LayoutBuilder::flushPendingFormItems()
+{
+    QTC_ASSERT(m_formLayout, return);
+
+    if (m_pendingFormItems.isEmpty())
+        return;
+
+    // If there are more than two items, we cram the last ones in one hbox.
+    if (m_pendingFormItems.size() > 2) {
+        auto hbox = new QHBoxLayout;
+        hbox->setContentsMargins(0, 0, 0, 0);
+        for (int i = 1; i < m_pendingFormItems.size(); ++i) {
+            if (QWidget *w = m_pendingFormItems.at(i).widget)
+                hbox->addWidget(w);
+            else if (QLayout *l = m_pendingFormItems.at(i).layout)
+                hbox->addItem(l);
+            else
+                QTC_CHECK(false);
+        }
+        while (m_pendingFormItems.size() >= 2)
+            m_pendingFormItems.takeLast();
+        m_pendingFormItems.append(LayoutItem(hbox));
+    }
+
+    if (m_pendingFormItems.size() == 1) { // One one item given, so this spans both columns.
+        if (auto layout = m_pendingFormItems.at(0).layout)
+            m_formLayout->addRow(layout);
+        else if (auto widget = m_pendingFormItems.at(0).widget)
+            m_formLayout->addRow(widget);
+    } else if (m_pendingFormItems.size() == 2) { // Normal case, both columns used.
+        if (auto label = m_pendingFormItems.at(0).widget) {
+            if (auto layout = m_pendingFormItems.at(1).layout)
+                m_formLayout->addRow(label, layout);
+            else if (auto widget = m_pendingFormItems.at(1).widget)
+                m_formLayout->addRow(label, widget);
+        } else  {
+            if (auto layout = m_pendingFormItems.at(1).layout)
+                m_formLayout->addRow(m_pendingFormItems.at(0).text, layout);
+            else if (auto widget = m_pendingFormItems.at(1).widget)
+                m_formLayout->addRow(m_pendingFormItems.at(0).text, widget);
+        }
+    } else {
+        QTC_CHECK(false);
+    }
+
+    m_pendingFormItems.clear();
+}
+
+QLayout *LayoutBuilder::layout() const
+{
+    if (m_formLayout)
+        return m_formLayout;
+    return m_gridLayout;
+}
+
+LayoutBuilder &LayoutBuilder::addItem(LayoutItem item)
+{
+    if (item.widget && !item.widget->parent())
+        item.widget->setParent(layout()->parentWidget());
+
+    if (item.aspect) {
+        item.aspect->addToLayout(*this);
+    } else {
+        if (m_gridLayout) {
+            if (auto widget = item.widget)
+                m_gridLayout->addWidget(widget, m_currentGridRow, m_currentGridColumn, 1, item.span, item.align);
+            m_currentGridColumn += item.span;
+        } else {
+            m_pendingFormItems.append(item);
+        }
+    }
+    return *this;
+}
+
+} // Utils
diff --git a/src/libs/utils/layoutbuilder.h b/src/libs/utils/layoutbuilder.h
new file mode 100644
index 00000000000..35db5975be1
--- /dev/null
+++ b/src/libs/utils/layoutbuilder.h
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "utils_global.h"
+
+#include <QList>
+#include <QString>
+
+QT_BEGIN_NAMESPACE
+class QFormLayout;
+class QGridLayout;
+class QLayout;
+class QWidget;
+QT_END_NAMESPACE
+
+namespace Utils {
+
+class BaseAspect;
+
+class QTCREATOR_UTILS_EXPORT LayoutBuilder
+{
+public:
+    enum LayoutType { GridLayout, FormLayout };
+    explicit LayoutBuilder(QWidget *parent, LayoutType layoutType = FormLayout);
+    explicit LayoutBuilder(QLayout *layout); // Adds to existing layout.
+
+    ~LayoutBuilder();
+
+    class LayoutItem
+    {
+    public:
+        LayoutItem(QLayout *layout, int span = 1) : layout(layout), span(span) {}
+        LayoutItem(QWidget *widget, int span = 1, Qt::Alignment align = {})
+            : widget(widget), span(span), align(align) {}
+        LayoutItem(BaseAspect *aspect) : aspect(aspect) {}
+        LayoutItem(const QString &text) : text(text) {}
+
+        QLayout *layout = nullptr;
+        QWidget *widget = nullptr;
+        BaseAspect *aspect = nullptr;
+        QString text;
+        int span = 1;
+        Qt::Alignment align;
+    };
+
+    template<typename ...Items>
+    LayoutBuilder &addItems(LayoutItem first, Items... rest) {
+        return addItem(first).addItems(rest...);
+    }
+    LayoutBuilder &addItems() { return *this; }
+    LayoutBuilder &addItem(LayoutItem item);
+
+    LayoutBuilder &startNewRow();
+    LayoutBuilder &addRow(const LayoutItem &item);
+
+    QLayout *layout() const;
+
+private:
+    void flushPendingFormItems();
+
+    QFormLayout *m_formLayout = nullptr;
+    QGridLayout *m_gridLayout = nullptr;
+    QList<LayoutItem> m_pendingFormItems;
+    int m_currentGridRow = 0;
+    int m_currentGridColumn = 0;
+};
+
+} // namespace Utils
diff --git a/src/libs/utils/macroexpander.cpp b/src/libs/utils/macroexpander.cpp
index 6a64398e5b4..d624d7cf2d0 100644
--- a/src/libs/utils/macroexpander.cpp
+++ b/src/libs/utils/macroexpander.cpp
@@ -195,7 +195,7 @@ using namespace Internal;
 
     If the string that you want to parametrize is settable by the user, through a QLineEdit or
     QTextEdit derived class, you should add a variable chooser to your UI, which allows adding
-    variables to the string by browsing through a list. See Core::VariableChooser for more
+    variables to the string by browsing through a list. See Utils::VariableChooser for more
     details.
 
     \section2 Expanding Strings
diff --git a/src/libs/utils/utils-lib.pri b/src/libs/utils/utils-lib.pri
index 1699855dcc4..4eeb496c8f3 100644
--- a/src/libs/utils/utils-lib.pri
+++ b/src/libs/utils/utils-lib.pri
@@ -138,7 +138,10 @@ SOURCES += \
     $$PWD/overlaywidget.cpp \
     $$PWD/archive.cpp \
     $$PWD/id.cpp \
-    $$PWD/infobar.cpp
+    $$PWD/infobar.cpp \
+    $$PWD/aspects.cpp \
+    $$PWD/layoutbuilder.cpp \
+    $$PWD/variablechooser.cpp
 
 HEADERS += \
     $$PWD/environmentfwd.h \
@@ -292,7 +295,10 @@ HEADERS += \
     $$PWD/archive.h \
     $$PWD/id.h \
     $$PWD/infobar.h \
-    $$PWD/porting.h
+    $$PWD/porting.h \
+    $$PWD/aspects.h \
+    $$PWD/layoutbuilder.h \
+    $$PWD/variablechooser.h
 
 FORMS += $$PWD/filewizardpage.ui \
     $$PWD/projectintropage.ui \
diff --git a/src/libs/utils/utils.qbs b/src/libs/utils/utils.qbs
index de630888885..0436fe51a6a 100644
--- a/src/libs/utils/utils.qbs
+++ b/src/libs/utils/utils.qbs
@@ -46,6 +46,8 @@ Project {
             "appmainwindow.h",
             "archive.cpp",
             "archive.h",
+            "aspects.cpp",
+            "aspects.h",
             "basetreeview.cpp",
             "basetreeview.h",
             "benchmarker.cpp",
@@ -155,6 +157,8 @@ Project {
             "json.h",
             "jsontreeitem.cpp",
             "jsontreeitem.h",
+            "layoutbuilder.cpp",
+            "layoutbuilder.h",
             "linecolumn.h",
             "link.h",
             "listmodel.h",
@@ -292,6 +296,8 @@ Project {
             "utils_global.h",
             "utilsicons.h",
             "utilsicons.cpp",
+            "variablechooser.cpp",
+            "variablechooser.h",
             "variant.h",
             "../3rdparty/variant/variant.hpp",
             "winutils.cpp",
diff --git a/src/plugins/coreplugin/variablechooser.cpp b/src/libs/utils/variablechooser.cpp
similarity index 97%
rename from src/plugins/coreplugin/variablechooser.cpp
rename to src/libs/utils/variablechooser.cpp
index d9c06e9d6f9..d558ffd5fa1 100644
--- a/src/plugins/coreplugin/variablechooser.cpp
+++ b/src/libs/utils/variablechooser.cpp
@@ -24,14 +24,13 @@
 ****************************************************************************/
 
 #include "variablechooser.h"
-#include "coreconstants.h"
 
-#include <utils/fancylineedit.h>
-#include <utils/headerviewstretcher.h> // IconButton
-#include <utils/macroexpander.h>
-#include <utils/treemodel.h>
-#include <utils/qtcassert.h>
-#include <utils/utilsicons.h>
+#include "fancylineedit.h"
+#include "headerviewstretcher.h" // IconButton
+#include "macroexpander.h"
+#include "treemodel.h"
+#include "qtcassert.h"
+#include "utilsicons.h"
 
 #include <QApplication>
 #include <QAbstractItemModel>
@@ -50,9 +49,7 @@
 #include <QVBoxLayout>
 #include <QVector>
 
-using namespace Utils;
-
-namespace Core {
+namespace Utils {
 namespace Internal {
 
 enum {
@@ -339,7 +336,7 @@ void VariableGroupItem::populateGroup(MacroExpander *expander)
 using namespace Internal;
 
 /*!
-    \class Core::VariableChooser
+    \class Utils::VariableChooser
     \inheaderfile coreplugin/variablechooser.h
     \inmodule QtCreator
 
@@ -366,10 +363,10 @@ using namespace Internal;
     Example:
     \code
     QWidget *myOptionsContainerWidget = new QWidget;
-    new Core::VariableChooser(myOptionsContainerWidget)
+    new Utils::VariableChooser(myOptionsContainerWidget)
     QLineEdit *myLineEditOption = new QLineEdit(myOptionsContainerWidget);
     myOptionsContainerWidget->layout()->addWidget(myLineEditOption);
-    Core::VariableChooser::addVariableSupport(myLineEditOption);
+    Utils::VariableChooser::addVariableSupport(myLineEditOption);
     \endcode
 */
 
diff --git a/src/plugins/coreplugin/variablechooser.h b/src/libs/utils/variablechooser.h
similarity index 92%
rename from src/plugins/coreplugin/variablechooser.h
rename to src/libs/utils/variablechooser.h
index 4144f3ea18c..69b95141f6c 100644
--- a/src/plugins/coreplugin/variablechooser.h
+++ b/src/libs/utils/variablechooser.h
@@ -25,18 +25,18 @@
 
 #pragma once
 
-#include "core_global.h"
+#include "utils_global.h"
+#include "macroexpander.h"
 
 #include <QWidget>
 
-#include <utils/macroexpander.h>
 #include <functional>
 
-namespace Core {
+namespace Utils {
 
 namespace Internal { class VariableChooserPrivate; }
 
-class CORE_EXPORT VariableChooser : public QWidget
+class QTCREATOR_UTILS_EXPORT VariableChooser : public QWidget
 {
     Q_OBJECT
 
@@ -57,4 +57,4 @@ private:
     Internal::VariableChooserPrivate *d;
 };
 
-} // namespace Core
+} // namespace Utils
diff --git a/src/plugins/android/androidrunconfiguration.cpp b/src/plugins/android/androidrunconfiguration.cpp
index bc937221f72..ebf20530cb4 100644
--- a/src/plugins/android/androidrunconfiguration.cpp
+++ b/src/plugins/android/androidrunconfiguration.cpp
@@ -41,11 +41,11 @@
 #include <qtsupport/qtkitinformation.h>
 
 #include <utils/detailswidget.h>
+#include <utils/layoutbuilder.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 #include <utils/utilsicons.h>
 
-#include <QFormLayout>
 #include <QLabel>
 #include <QLineEdit>
 #include <QSpacerItem>
@@ -114,7 +114,7 @@ AndroidRunConfiguration::AndroidRunConfiguration(Target *target, Utils::Id id)
 
     auto extraAppArgsAspect = addAspect<ArgumentsAspect>();
 
-    connect(extraAppArgsAspect, &ProjectConfigurationAspect::changed,
+    connect(extraAppArgsAspect, &BaseAspect::changed,
             this, [target, extraAppArgsAspect]() {
         if (target->buildConfigurations().first()->buildType() == BuildConfiguration::BuildType::Release) {
             const QString buildKey = target->activeBuildKey();
diff --git a/src/plugins/android/androidrunconfiguration.h b/src/plugins/android/androidrunconfiguration.h
index 1dd6daf02e5..1ac44f60b67 100644
--- a/src/plugins/android/androidrunconfiguration.h
+++ b/src/plugins/android/androidrunconfiguration.h
@@ -34,7 +34,7 @@
 
 namespace Android {
 
-class BaseStringListAspect : public ProjectExplorer::ProjectConfigurationAspect
+class BaseStringListAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
@@ -43,7 +43,7 @@ public:
                                   Utils::Id id = Utils::Id());
     ~BaseStringListAspect() override;
 
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
     QStringList value() const;
     void setValue(const QStringList &val);
diff --git a/src/plugins/autotoolsprojectmanager/autogenstep.cpp b/src/plugins/autotoolsprojectmanager/autogenstep.cpp
index 269cd9b1aed..bd003864c25 100644
--- a/src/plugins/autotoolsprojectmanager/autogenstep.cpp
+++ b/src/plugins/autotoolsprojectmanager/autogenstep.cpp
@@ -32,10 +32,12 @@
 #include <projectexplorer/abstractprocessstep.h>
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/processparameters.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
+
 #include <QDateTime>
 
 using namespace ProjectExplorer;
@@ -80,7 +82,7 @@ AutogenStep::AutogenStep(BuildStepList *bsl, Utils::Id id) : AbstractProcessStep
     m_additionalArgumentsAspect->setDisplayStyle(StringAspect::LineEditDisplay);
     m_additionalArgumentsAspect->setHistoryCompleter("AutotoolsPM.History.AutogenStepArgs");
 
-    connect(m_additionalArgumentsAspect, &ProjectConfigurationAspect::changed, this, [this] {
+    connect(m_additionalArgumentsAspect, &BaseAspect::changed, this, [this] {
         m_runAutogen = true;
     });
 
diff --git a/src/plugins/autotoolsprojectmanager/autoreconfstep.cpp b/src/plugins/autotoolsprojectmanager/autoreconfstep.cpp
index 3e0612fa1aa..d68faaf9176 100644
--- a/src/plugins/autotoolsprojectmanager/autoreconfstep.cpp
+++ b/src/plugins/autotoolsprojectmanager/autoreconfstep.cpp
@@ -33,10 +33,13 @@
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/processparameters.h>
 #include <projectexplorer/project.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
+
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace AutotoolsProjectManager {
 namespace Internal {
@@ -78,7 +81,7 @@ AutoreconfStep::AutoreconfStep(BuildStepList *bsl, Utils::Id id)
     m_additionalArgumentsAspect->setDisplayStyle(StringAspect::LineEditDisplay);
     m_additionalArgumentsAspect->setHistoryCompleter("AutotoolsPM.History.AutoreconfStepArgs");
 
-    connect(m_additionalArgumentsAspect, &ProjectConfigurationAspect::changed, this, [this] {
+    connect(m_additionalArgumentsAspect, &BaseAspect::changed, this, [this] {
         m_runAutoreconf = true;
     });
 
diff --git a/src/plugins/autotoolsprojectmanager/configurestep.cpp b/src/plugins/autotoolsprojectmanager/configurestep.cpp
index 0f94cebc3a0..ecdd08df58e 100644
--- a/src/plugins/autotoolsprojectmanager/configurestep.cpp
+++ b/src/plugins/autotoolsprojectmanager/configurestep.cpp
@@ -32,10 +32,12 @@
 
 #include <projectexplorer/abstractprocessstep.h>
 #include <projectexplorer/processparameters.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
+
 #include <QDateTime>
 #include <QDir>
 
@@ -84,7 +86,7 @@ public:
 private:
     void doRun() override;
 
-    ProjectExplorer::StringAspect *m_additionalArgumentsAspect = nullptr;
+    StringAspect *m_additionalArgumentsAspect = nullptr;
     bool m_runConfigure = false;
 };
 
@@ -100,7 +102,7 @@ ConfigureStep::ConfigureStep(BuildStepList *bsl, Utils::Id id)
     m_additionalArgumentsAspect->setLabelText(tr("Arguments:"));
     m_additionalArgumentsAspect->setHistoryCompleter("AutotoolsPM.History.ConfigureArgs");
 
-    connect(m_additionalArgumentsAspect, &ProjectConfigurationAspect::changed, this, [this] {
+    connect(m_additionalArgumentsAspect, &BaseAspect::changed, this, [this] {
         m_runConfigure = true;
     });
 
diff --git a/src/plugins/baremetal/baremetaldeviceconfigurationwizardpages.cpp b/src/plugins/baremetal/baremetaldeviceconfigurationwizardpages.cpp
index d3216e0bb64..7b5a58ff49d 100644
--- a/src/plugins/baremetal/baremetaldeviceconfigurationwizardpages.cpp
+++ b/src/plugins/baremetal/baremetaldeviceconfigurationwizardpages.cpp
@@ -29,7 +29,7 @@
 
 #include "debugserverproviderchooser.h"
 
-#include <coreplugin/variablechooser.h>
+#include <utils/variablechooser.h>
 #include <projectexplorer/devicesupport/idevice.h>
 
 #include <QFormLayout>
diff --git a/src/plugins/baremetal/debugservers/gdb/eblinkgdbserverprovider.cpp b/src/plugins/baremetal/debugservers/gdb/eblinkgdbserverprovider.cpp
index d54b701460f..bd6e3422852 100644
--- a/src/plugins/baremetal/debugservers/gdb/eblinkgdbserverprovider.cpp
+++ b/src/plugins/baremetal/debugservers/gdb/eblinkgdbserverprovider.cpp
@@ -28,11 +28,10 @@
 #include <baremetal/baremetalconstants.h>
 #include <baremetal/debugserverprovidermanager.h>
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/fileutils.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QComboBox>
@@ -297,7 +296,7 @@ EBlinkGdbServerProviderConfigWidget::EBlinkGdbServerProviderConfigWidget(
     addErrorLabel();
     setFromProvider();
 
-    const auto chooser = new Core::VariableChooser(this);
+    const auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_initCommandsTextEdit);
     chooser->addSupportedWidget(m_resetCommandsTextEdit);
 
diff --git a/src/plugins/baremetal/debugservers/gdb/jlinkgdbserverprovider.cpp b/src/plugins/baremetal/debugservers/gdb/jlinkgdbserverprovider.cpp
index 047c1feba23..052ada87347 100644
--- a/src/plugins/baremetal/debugservers/gdb/jlinkgdbserverprovider.cpp
+++ b/src/plugins/baremetal/debugservers/gdb/jlinkgdbserverprovider.cpp
@@ -28,12 +28,11 @@
 #include <baremetal/baremetalconstants.h>
 #include <baremetal/debugserverprovidermanager.h>
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/fileutils.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
+#include <utils/variablechooser.h>
 
 #include <QComboBox>
 #include <QFormLayout>
@@ -271,12 +270,10 @@ JLinkGdbServerProviderConfigWidget::JLinkGdbServerProviderConfigWidget(
     m_resetCommandsTextEdit->setToolTip(defaultResetCommandsTooltip());
     m_mainLayout->addRow(tr("Reset commands:"), m_resetCommandsTextEdit);
 
-
-
     addErrorLabel();
     setFromProvider();
 
-    const auto chooser = new Core::VariableChooser(this);
+    const auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_initCommandsTextEdit);
     chooser->addSupportedWidget(m_resetCommandsTextEdit);
 
diff --git a/src/plugins/baremetal/debugservers/gdb/openocdgdbserverprovider.cpp b/src/plugins/baremetal/debugservers/gdb/openocdgdbserverprovider.cpp
index 093f1cbc940..74361dc2d4d 100644
--- a/src/plugins/baremetal/debugservers/gdb/openocdgdbserverprovider.cpp
+++ b/src/plugins/baremetal/debugservers/gdb/openocdgdbserverprovider.cpp
@@ -28,12 +28,11 @@
 #include <baremetal/baremetalconstants.h>
 #include <baremetal/debugserverprovidermanager.h>
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/fileutils.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
+#include <utils/variablechooser.h>
 
 #include <QComboBox>
 #include <QFormLayout>
@@ -230,7 +229,7 @@ OpenOcdGdbServerProviderConfigWidget::OpenOcdGdbServerProviderConfigWidget(
     addErrorLabel();
     setFromProvider();
 
-    const auto chooser = new Core::VariableChooser(this);
+    const auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_initCommandsTextEdit);
     chooser->addSupportedWidget(m_resetCommandsTextEdit);
 
diff --git a/src/plugins/baremetal/debugservers/gdb/stlinkutilgdbserverprovider.cpp b/src/plugins/baremetal/debugservers/gdb/stlinkutilgdbserverprovider.cpp
index c9379e72a1d..0c280f2f429 100644
--- a/src/plugins/baremetal/debugservers/gdb/stlinkutilgdbserverprovider.cpp
+++ b/src/plugins/baremetal/debugservers/gdb/stlinkutilgdbserverprovider.cpp
@@ -28,11 +28,10 @@
 #include <baremetal/baremetalconstants.h>
 #include <baremetal/debugserverprovidermanager.h>
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/fileutils.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QComboBox>
@@ -222,7 +221,7 @@ StLinkUtilGdbServerProviderConfigWidget::StLinkUtilGdbServerProviderConfigWidget
     addErrorLabel();
     setFromProvider();
 
-    const auto chooser = new Core::VariableChooser(this);
+    const auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_initCommandsTextEdit);
     chooser->addSupportedWidget(m_resetCommandsTextEdit);
 
diff --git a/src/plugins/boot2qt/qdbmakedefaultappstep.cpp b/src/plugins/boot2qt/qdbmakedefaultappstep.cpp
index c371704b8d1..8d0c222c7c9 100644
--- a/src/plugins/boot2qt/qdbmakedefaultappstep.cpp
+++ b/src/plugins/boot2qt/qdbmakedefaultappstep.cpp
@@ -33,6 +33,7 @@
 #include <remotelinux/abstractremotelinuxdeploystep.h>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace Qdb {
 namespace Internal {
diff --git a/src/plugins/cmakeprojectmanager/builddirparameters.cpp b/src/plugins/cmakeprojectmanager/builddirparameters.cpp
index 5424ef8b9ad..e240f7ec239 100644
--- a/src/plugins/cmakeprojectmanager/builddirparameters.cpp
+++ b/src/plugins/cmakeprojectmanager/builddirparameters.cpp
@@ -36,6 +36,7 @@
 #include <projectexplorer/target.h>
 #include <projectexplorer/toolchain.h>
 
+#include <utils/algorithm.h>
 #include <utils/qtcassert.h>
 
 using namespace ProjectExplorer;
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
index 74a76251f41..b5ff7145ab2 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
+++ b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
@@ -126,7 +126,7 @@ private:
     friend class CMakeProjectImporter;
 };
 
-class InitialCMakeArgumentsAspect final : public ProjectExplorer::StringAspect
+class InitialCMakeArgumentsAspect final : public Utils::StringAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildsettingswidget.cpp b/src/plugins/cmakeprojectmanager/cmakebuildsettingswidget.cpp
index ead1fa34819..26316b02ea6 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildsettingswidget.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildsettingswidget.cpp
@@ -44,6 +44,7 @@
 #include <utils/headerviewstretcher.h>
 #include <utils/infolabel.h>
 #include <utils/itemviews.h>
+#include <utils/layoutbuilder.h>
 #include <utils/progressindicator.h>
 #include <utils/qtcassert.h>
 
@@ -54,6 +55,7 @@
 #include <QMenu>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace CMakeProjectManager {
 namespace Internal {
@@ -100,7 +102,7 @@ CMakeBuildSettingsWidget::CMakeBuildSettingsWidget(CMakeBuildConfiguration *bc)
 
     int row = 0;
     auto buildDirAspect = bc->buildDirectoryAspect();
-    connect(buildDirAspect, &ProjectConfigurationAspect::changed, this, [this]() {
+    connect(buildDirAspect, &BaseAspect::changed, this, [this]() {
         m_configModel->flush(); // clear out config cache...;
     });
     auto initialCMakeAspect = bc->aspect<InitialCMakeArgumentsAspect>();
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
index 294d88163f0..b8056a65228 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
@@ -42,6 +42,7 @@
 #include <projectexplorer/target.h>
 
 #include <utils/algorithm.h>
+#include <utils/layoutbuilder.h>
 
 #include <QBoxLayout>
 #include <QListWidget>
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildstep.h b/src/plugins/cmakeprojectmanager/cmakebuildstep.h
index f2a5e7871a0..f203914c088 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildstep.h
+++ b/src/plugins/cmakeprojectmanager/cmakebuildstep.h
@@ -28,9 +28,10 @@
 #include <projectexplorer/abstractprocessstep.h>
 #include <utils/treemodel.h>
 
-namespace Utils { class CommandLine; }
-
-namespace ProjectExplorer { class StringAspect; }
+namespace Utils {
+class CommandLine;
+class StringAspect;
+} // Utils
 
 namespace CMakeProjectManager {
 namespace Internal {
@@ -103,8 +104,8 @@ private:
 
     friend class CMakeBuildStepConfigWidget;
     QStringList m_buildTargets; // Convention: Empty string member signifies "Current executable"
-    ProjectExplorer::StringAspect *m_cmakeArguments = nullptr;
-    ProjectExplorer::StringAspect *m_toolArguments = nullptr;
+    Utils::StringAspect *m_cmakeArguments = nullptr;
+    Utils::StringAspect *m_toolArguments = nullptr;
     bool m_waiting = false;
 
     Utils::TreeModel<Utils::TreeItem, CMakeTargetItem> m_buildTargetModel;
diff --git a/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp b/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
index eeae05f9217..bfafbd42ac0 100644
--- a/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
@@ -32,7 +32,6 @@
 #include "cmaketoolmanager.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 #include <projectexplorer/kitinformation.h>
 #include <projectexplorer/projectexplorer.h>
 #include <projectexplorer/projectexplorersettings.h>
@@ -49,6 +48,7 @@
 #include <utils/environment.h>
 #include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <QComboBox>
 #include <QDialog>
@@ -877,7 +877,7 @@ private:
                                 "You may provide a type hint by adding \":TYPE\" before the \"=\"."));
         m_editor->setMinimumSize(800, 200);
 
-        auto chooser = new Core::VariableChooser(m_dialog);
+        auto chooser = new Utils::VariableChooser(m_dialog);
         chooser->addSupportedWidget(m_editor);
         chooser->addMacroExpanderProvider([this]() { return kit()->macroExpander(); });
 
diff --git a/src/plugins/coreplugin/CMakeLists.txt b/src/plugins/coreplugin/CMakeLists.txt
index 237a9d54dfd..6705478bfbc 100644
--- a/src/plugins/coreplugin/CMakeLists.txt
+++ b/src/plugins/coreplugin/CMakeLists.txt
@@ -146,7 +146,6 @@ add_qtc_plugin(Core
     systemsettings.cpp systemsettings.h systemsettings.ui
     textdocument.cpp textdocument.h
     themechooser.cpp themechooser.h
-    variablechooser.cpp variablechooser.h
     vcsmanager.cpp vcsmanager.h
     versiondialog.cpp versiondialog.h
     welcomepagehelper.cpp welcomepagehelper.h
diff --git a/src/plugins/coreplugin/coreplugin.pro b/src/plugins/coreplugin/coreplugin.pro
index fd472ed566e..5aeec3f716f 100644
--- a/src/plugins/coreplugin/coreplugin.pro
+++ b/src/plugins/coreplugin/coreplugin.pro
@@ -86,7 +86,6 @@ SOURCES += corejsextensions.cpp \
     externaltool.cpp \
     dialogs/externaltoolconfig.cpp \
     dialogs/filepropertiesdialog.cpp \
-    variablechooser.cpp \
     mimetypemagicdialog.cpp \
     mimetypesettings.cpp \
     dialogs/promptoverwritedialog.cpp \
@@ -201,7 +200,6 @@ HEADERS += corejsextensions.h \
     externaltool.h \
     dialogs/externaltoolconfig.h \
     dialogs/filepropertiesdialog.h \
-    variablechooser.h \
     mimetypemagicdialog.h \
     mimetypesettings.h \
     dialogs/promptoverwritedialog.h \
diff --git a/src/plugins/coreplugin/coreplugin.qbs b/src/plugins/coreplugin/coreplugin.qbs
index d77e6015139..aaa05fd5b94 100644
--- a/src/plugins/coreplugin/coreplugin.qbs
+++ b/src/plugins/coreplugin/coreplugin.qbs
@@ -175,8 +175,6 @@ Project {
                 "textdocument.h",
                 "themechooser.cpp",
                 "themechooser.h",
-                "variablechooser.cpp",
-                "variablechooser.h",
                 "vcsmanager.cpp",
                 "vcsmanager.h",
                 "versiondialog.cpp",
diff --git a/src/plugins/coreplugin/dialogs/externaltoolconfig.cpp b/src/plugins/coreplugin/dialogs/externaltoolconfig.cpp
index ec9eccbbbe6..6dd1f788081 100644
--- a/src/plugins/coreplugin/dialogs/externaltoolconfig.cpp
+++ b/src/plugins/coreplugin/dialogs/externaltoolconfig.cpp
@@ -36,12 +36,12 @@
 #include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
+#include <utils/variablechooser.h>
 
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/externaltool.h>
 #include <coreplugin/externaltoolmanager.h>
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <QDialogButtonBox>
 #include <QDir>
diff --git a/src/plugins/cppcheck/cppcheckoptions.cpp b/src/plugins/cppcheck/cppcheckoptions.cpp
index bb963c06e74..735557daf23 100644
--- a/src/plugins/cppcheck/cppcheckoptions.cpp
+++ b/src/plugins/cppcheck/cppcheckoptions.cpp
@@ -32,9 +32,9 @@
 #include <utils/hostosinfo.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <debugger/analyzer/analyzericons.h>
 
@@ -66,7 +66,7 @@ OptionsWidget::OptionsWidget(QWidget *parent)
     m_binary->setExpectedKind(Utils::PathChooser::ExistingCommand);
     m_binary->setCommandVersionArguments({"--version"});
 
-    auto variableChooser = new Core::VariableChooser(this);
+    auto variableChooser = new Utils::VariableChooser(this);
     variableChooser->addSupportedWidget (m_customArguments);
 
     m_unusedFunction->setToolTip(tr("Disables multithreaded check."));
diff --git a/src/plugins/debugger/commonoptionspage.cpp b/src/plugins/debugger/commonoptionspage.cpp
index 8bd42ed612f..600cf432fbe 100644
--- a/src/plugins/debugger/commonoptionspage.cpp
+++ b/src/plugins/debugger/commonoptionspage.cpp
@@ -31,7 +31,6 @@
 #include "debuggersourcepathmappingwidget.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <app/app_version.h>
 
@@ -39,6 +38,7 @@
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/savedaction.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QCoreApplication>
diff --git a/src/plugins/debugger/debuggerrunconfigurationaspect.cpp b/src/plugins/debugger/debuggerrunconfigurationaspect.cpp
index 4f8820a27d6..2111dd5d6ab 100644
--- a/src/plugins/debugger/debuggerrunconfigurationaspect.cpp
+++ b/src/plugins/debugger/debuggerrunconfigurationaspect.cpp
@@ -40,14 +40,17 @@
 #include <projectexplorer/target.h>
 #include <qtsupport/qtbuildaspects.h>
 
+#include <utils/layoutbuilder.h>
+
 #include <QCheckBox>
 #include <QDebug>
 #include <QFormLayout>
 #include <QLabel>
 #include <QTextEdit>
 
-using namespace ProjectExplorer;
 using namespace Debugger::Internal;
+using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace Debugger {
 namespace Internal {
@@ -58,7 +61,7 @@ enum DebuggerLanguageStatus {
     AutoEnabledLanguage
 };
 
-class DebuggerLanguageAspect : public ProjectConfigurationAspect
+class DebuggerLanguageAspect : public BaseAspect
 {
 public:
     DebuggerLanguageAspect() = default;
diff --git a/src/plugins/debugger/debuggerrunconfigurationaspect.h b/src/plugins/debugger/debuggerrunconfigurationaspect.h
index 63d5dc3b3f7..bd2a0a0e00e 100644
--- a/src/plugins/debugger/debuggerrunconfigurationaspect.h
+++ b/src/plugins/debugger/debuggerrunconfigurationaspect.h
@@ -59,8 +59,8 @@ public:
 private:
     Internal::DebuggerLanguageAspect *m_cppAspect;
     Internal::DebuggerLanguageAspect *m_qmlAspect;
-    ProjectExplorer::BoolAspect *m_multiProcessAspect;
-    ProjectExplorer::StringAspect *m_overrideStartupAspect;
+    Utils::BoolAspect *m_multiProcessAspect;
+    Utils::StringAspect *m_overrideStartupAspect;
     ProjectExplorer::Target *m_target;
 };
 
diff --git a/src/plugins/debugger/debuggersourcepathmappingwidget.cpp b/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
index 8652ff10f80..826b440467e 100644
--- a/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
+++ b/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
@@ -26,14 +26,13 @@
 #include "debuggersourcepathmappingwidget.h"
 #include "debuggerengine.h"
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/buildablehelperlibrary.h>
 #include <utils/fancylineedit.h>
+#include <utils/hostosinfo.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/synchronousprocess.h>
-#include <utils/hostosinfo.h>
+#include <utils/variablechooser.h>
 
 #include <QStandardItemModel>
 #include <QTreeView>
@@ -276,7 +275,7 @@ DebuggerSourcePathMappingWidget::DebuggerSourcePathMappingWidget(QWidget *parent
     editLayout->addRow(editTargetLabel, m_targetChooser);
     editLayout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
 
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_targetChooser->lineEdit());
 
     // Main layout
diff --git a/src/plugins/debugger/gdb/gdboptionspage.cpp b/src/plugins/debugger/gdb/gdboptionspage.cpp
index ff4b503e2fb..a3c68a563a2 100644
--- a/src/plugins/debugger/gdb/gdboptionspage.cpp
+++ b/src/plugins/debugger/gdb/gdboptionspage.cpp
@@ -31,11 +31,11 @@
 
 #include <coreplugin/dialogs/ioptionspage.h>
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <utils/fancylineedit.h>
 #include <utils/pathchooser.h>
 #include <utils/savedaction.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QCoreApplication>
diff --git a/src/plugins/genericprojectmanager/genericbuildconfiguration.cpp b/src/plugins/genericprojectmanager/genericbuildconfiguration.cpp
index 6d1918f1aa0..540d8754c5d 100644
--- a/src/plugins/genericprojectmanager/genericbuildconfiguration.cpp
+++ b/src/plugins/genericprojectmanager/genericbuildconfiguration.cpp
@@ -32,13 +32,13 @@
 #include <projectexplorer/buildinfo.h>
 #include <projectexplorer/buildsteplist.h>
 #include <projectexplorer/kitinformation.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
 #include <qtsupport/baseqtversion.h>
 #include <qtsupport/qtkitinformation.h>
 
+#include <utils/aspects.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 
diff --git a/src/plugins/incredibuild/buildconsolebuildstep.cpp b/src/plugins/incredibuild/buildconsolebuildstep.cpp
index c8f7b3409ec..65cc943de4c 100644
--- a/src/plugins/incredibuild/buildconsolebuildstep.cpp
+++ b/src/plugins/incredibuild/buildconsolebuildstep.cpp
@@ -33,9 +33,10 @@
 #include <projectexplorer/gnumakeparser.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/processparameters.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
 #include <utils/environment.h>
 
 using namespace ProjectExplorer;
diff --git a/src/plugins/incredibuild/commandbuilderaspect.cpp b/src/plugins/incredibuild/commandbuilderaspect.cpp
index be5272ed75f..724e38d2ce7 100644
--- a/src/plugins/incredibuild/commandbuilderaspect.cpp
+++ b/src/plugins/incredibuild/commandbuilderaspect.cpp
@@ -34,6 +34,7 @@
 #include <projectexplorer/project.h>
 
 #include <utils/environment.h>
+#include <utils/layoutbuilder.h>
 #include <utils/pathchooser.h>
 
 #include <QComboBox>
diff --git a/src/plugins/incredibuild/commandbuilderaspect.h b/src/plugins/incredibuild/commandbuilderaspect.h
index f2fccd340ca..b2f507bc0bb 100644
--- a/src/plugins/incredibuild/commandbuilderaspect.h
+++ b/src/plugins/incredibuild/commandbuilderaspect.h
@@ -26,7 +26,8 @@
 #pragma once
 
 #include <projectexplorer/buildstep.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+
+#include <utils/aspects.h>
 
 #include <QLabel>
 #include <QPointer>
@@ -34,7 +35,7 @@
 namespace IncrediBuild {
 namespace Internal {
 
-class CommandBuilderAspect final : public ProjectExplorer::ProjectConfigurationAspect
+class CommandBuilderAspect final : public Utils::BaseAspect
 {
 public:
     explicit CommandBuilderAspect(ProjectExplorer::BuildStep *step);
@@ -43,7 +44,7 @@ public:
     QString fullCommandFlag(bool keepJobNum) const;
 
 private:
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) final;
+    void addToLayout(Utils::LayoutBuilder &builder) final;
     void fromMap(const QVariantMap &map) final;
     void toMap(QVariantMap &map) const final;
 
diff --git a/src/plugins/incredibuild/ibconsolebuildstep.cpp b/src/plugins/incredibuild/ibconsolebuildstep.cpp
index 4d118af097f..a0e4b8bb972 100644
--- a/src/plugins/incredibuild/ibconsolebuildstep.cpp
+++ b/src/plugins/incredibuild/ibconsolebuildstep.cpp
@@ -33,9 +33,11 @@
 #include <projectexplorer/gnumakeparser.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/processparameters.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
+
 using namespace ProjectExplorer;
 using namespace Utils;
 
diff --git a/src/plugins/ios/iosbuildconfiguration.cpp b/src/plugins/ios/iosbuildconfiguration.cpp
index d6ae73dc7c0..b82c9ca9844 100644
--- a/src/plugins/ios/iosbuildconfiguration.cpp
+++ b/src/plugins/ios/iosbuildconfiguration.cpp
@@ -47,6 +47,7 @@
 
 using namespace QmakeProjectManager;
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace Ios {
 namespace Internal {
diff --git a/src/plugins/ios/iosbuildconfiguration.h b/src/plugins/ios/iosbuildconfiguration.h
index 51565c0ecdf..2f82187f01e 100644
--- a/src/plugins/ios/iosbuildconfiguration.h
+++ b/src/plugins/ios/iosbuildconfiguration.h
@@ -26,7 +26,7 @@
 
 #include "qmakeprojectmanager/qmakebuildconfiguration.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <utils/aspects.h>
 
 namespace Ios {
 namespace Internal {
@@ -46,8 +46,8 @@ private:
 
     void updateQmakeCommand();
 
-    ProjectExplorer::StringAspect *m_signingIdentifier = nullptr;
-    ProjectExplorer::BoolAspect *m_autoManagedSigning = nullptr;
+    Utils::StringAspect *m_signingIdentifier = nullptr;
+    Utils::BoolAspect *m_autoManagedSigning = nullptr;
 };
 
 class IosBuildConfigurationFactory : public QmakeProjectManager::QmakeBuildConfigurationFactory
diff --git a/src/plugins/ios/iosrunconfiguration.cpp b/src/plugins/ios/iosrunconfiguration.cpp
index dce03d37a52..36543ca2e9c 100644
--- a/src/plugins/ios/iosrunconfiguration.cpp
+++ b/src/plugins/ios/iosrunconfiguration.cpp
@@ -43,6 +43,7 @@
 #include <utils/fileutils.h>
 #include <utils/qtcprocess.h>
 #include <utils/qtcassert.h>
+#include <utils/layoutbuilder.h>
 
 #include <QAction>
 #include <QApplication>
@@ -77,14 +78,14 @@ static IosDeviceType toIosDeviceType(const SimulatorInfo &device)
     return iosDeviceType;
 }
 
-class IosDeviceTypeAspect : public ProjectConfigurationAspect
+class IosDeviceTypeAspect : public BaseAspect
 {
 public:
     IosDeviceTypeAspect(IosRunConfiguration *runConfiguration);
 
     void fromMap(const QVariantMap &map) override;
     void toMap(QVariantMap &map) const override;
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) override;
+    void addToLayout(LayoutBuilder &builder) override;
 
     IosDeviceType deviceType() const;
     void setDeviceType(const IosDeviceType &deviceType);
diff --git a/src/plugins/languageclient/languageclientsettings.cpp b/src/plugins/languageclient/languageclientsettings.cpp
index 2c5293d1285..7ccfaa842b6 100644
--- a/src/plugins/languageclient/languageclientsettings.cpp
+++ b/src/plugins/languageclient/languageclientsettings.cpp
@@ -33,7 +33,6 @@
 #include <coreplugin/editormanager/documentmodel.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/idocument.h>
-#include <coreplugin/variablechooser.h>
 
 #include <projectexplorer/project.h>
 #include <projectexplorer/session.h>
@@ -45,6 +44,7 @@
 #include <utils/mimetypes/mimedatabase.h>
 #include <utils/jsontreeitem.h>
 #include <utils/stringutils.h>
+#include <utils/variablechooser.h>
 
 #include <QBoxLayout>
 #include <QComboBox>
@@ -728,7 +728,7 @@ BaseSettingsWidget::BaseSettingsWidget(const BaseSettings *settings, QWidget *pa
 
     mainLayout->addWidget(new QLabel(tr("Name:")), row, 0);
     mainLayout->addWidget(m_name, row, 1);
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new Utils::VariableChooser(this);
     chooser->addSupportedWidget(m_name);
 
     mainLayout->addWidget(new QLabel(tr("Language:")), ++row, 0);
@@ -935,7 +935,7 @@ StdIOSettingsWidget::StdIOSettingsWidget(const StdIOSettings *settings, QWidget
     m_executable->setPath(QDir::toNativeSeparators(settings->m_executable));
     mainLayout->addWidget(m_arguments, baseRows + 1, 1);
 
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new Utils::VariableChooser(this);
     chooser->addSupportedWidget(m_arguments);
 }
 
diff --git a/src/plugins/mcusupport/mcusupportrunconfiguration.cpp b/src/plugins/mcusupport/mcusupportrunconfiguration.cpp
index ee325a2d78c..f1e9de0daf5 100644
--- a/src/plugins/mcusupport/mcusupportrunconfiguration.cpp
+++ b/src/plugins/mcusupport/mcusupportrunconfiguration.cpp
@@ -26,16 +26,18 @@
 #include "mcusupportrunconfiguration.h"
 #include "mcusupportconstants.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/devicesupport/devicemanager.h>
 #include <projectexplorer/devicesupport/deviceusedportsgatherer.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/runcontrol.h>
 #include <projectexplorer/target.h>
+
 #include <cmakeprojectmanager/cmakekitinformation.h>
 #include <cmakeprojectmanager/cmaketool.h>
 
+#include <utils/aspects.h>
+
 using namespace ProjectExplorer;
 using namespace Utils;
 
diff --git a/src/plugins/mesonprojectmanager/project/buildoptions/mesonbuildsettingswidget.cpp b/src/plugins/mesonprojectmanager/project/buildoptions/mesonbuildsettingswidget.cpp
index b8b35373b60..85cb089f232 100644
--- a/src/plugins/mesonprojectmanager/project/buildoptions/mesonbuildsettingswidget.cpp
+++ b/src/plugins/mesonprojectmanager/project/buildoptions/mesonbuildsettingswidget.cpp
@@ -27,14 +27,18 @@
 #include <projectexplorer/projectconfiguration.h>
 #include <utils/detailswidget.h>
 #include <utils/headerviewstretcher.h>
+#include <utils/layoutbuilder.h>
 
 #include "../mesonbuildconfiguration.h"
 #include "../mesonbuildsystem.h"
 #include "mesonbuildsettingswidget.h"
 #include "ui_mesonbuildsettingswidget.h"
 
+using namespace Utils;
+
 namespace MesonProjectManager {
 namespace Internal {
+
 MesonBuildSettingsWidget::MesonBuildSettingsWidget(MesonBuildConfiguration *buildCfg)
     : ProjectExplorer::NamedWidget{tr("Meson")}
     , ui{new Ui::MesonBuildSettingsWidget}
@@ -43,7 +47,7 @@ MesonBuildSettingsWidget::MesonBuildSettingsWidget(MesonBuildConfiguration *buil
     ui->setupUi(this);
     ui->container->setState(Utils::DetailsWidget::NoSummary);
     ui->container->setWidget(ui->details);
-    ProjectExplorer::LayoutBuilder buildDirWBuilder{ui->buildDirWidget};
+    LayoutBuilder buildDirWBuilder{ui->buildDirWidget};
     auto buildDirAspect = buildCfg->buildDirectoryAspect();
     buildDirAspect->addToLayout(buildDirWBuilder);
 
diff --git a/src/plugins/nim/project/nimbletaskstep.cpp b/src/plugins/nim/project/nimbletaskstep.cpp
index dc9dacf160d..ca119e891d3 100644
--- a/src/plugins/nim/project/nimbletaskstep.cpp
+++ b/src/plugins/nim/project/nimbletaskstep.cpp
@@ -34,11 +34,12 @@
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/processparameters.h>
 #include <projectexplorer/projectexplorerconstants.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/target.h>
 
+#include <utils/aspects.h>
 #include <utils/algorithm.h>
 #include <utils/fileutils.h>
+#include <utils/layoutbuilder.h>
 
 #include <QFormLayout>
 #include <QLineEdit>
diff --git a/src/plugins/nim/project/nimbuildconfiguration.cpp b/src/plugins/nim/project/nimbuildconfiguration.cpp
index 3e1f05a7b84..ae421b738da 100644
--- a/src/plugins/nim/project/nimbuildconfiguration.cpp
+++ b/src/plugins/nim/project/nimbuildconfiguration.cpp
@@ -38,7 +38,8 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/projectmacroexpander.h>
 #include <projectexplorer/target.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+
+#include <utils/aspects.h>
 #include <utils/mimetypes/mimedatabase.h>
 #include <utils/qtcassert.h>
 
diff --git a/src/plugins/nim/project/nimcompilercleanstep.cpp b/src/plugins/nim/project/nimcompilercleanstep.cpp
index 4d37fddc2b8..f9d6102b8f1 100644
--- a/src/plugins/nim/project/nimcompilercleanstep.cpp
+++ b/src/plugins/nim/project/nimcompilercleanstep.cpp
@@ -28,8 +28,9 @@
 
 #include "../nimconstants.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/projectexplorerconstants.h>
+
+#include <utils/aspects.h>
 #include <utils/qtcassert.h>
 
 #include <QDir>
diff --git a/src/plugins/projectexplorer/CMakeLists.txt b/src/plugins/projectexplorer/CMakeLists.txt
index c44faf7f0d9..13ede53da94 100644
--- a/src/plugins/projectexplorer/CMakeLists.txt
+++ b/src/plugins/projectexplorer/CMakeLists.txt
@@ -127,7 +127,6 @@ add_qtc_plugin(ProjectExplorer
     processstep.cpp processstep.h
     project.cpp project.h
     projectconfiguration.cpp projectconfiguration.h
-    projectconfigurationaspects.cpp projectconfigurationaspects.h
     projectconfigurationmodel.cpp projectconfigurationmodel.h
     projectexplorer.cpp projectexplorer.h
     projectexplorer.qrc
diff --git a/src/plugins/projectexplorer/buildaspects.cpp b/src/plugins/projectexplorer/buildaspects.cpp
index 04f71e132e1..00dea18e870 100644
--- a/src/plugins/projectexplorer/buildaspects.cpp
+++ b/src/plugins/projectexplorer/buildaspects.cpp
@@ -30,6 +30,7 @@
 
 #include <utils/fileutils.h>
 #include <utils/infolabel.h>
+#include <utils/layoutbuilder.h>
 
 #include <QLayout>
 
diff --git a/src/plugins/projectexplorer/buildaspects.h b/src/plugins/projectexplorer/buildaspects.h
index f34e3d732a3..a40e27009b7 100644
--- a/src/plugins/projectexplorer/buildaspects.h
+++ b/src/plugins/projectexplorer/buildaspects.h
@@ -26,13 +26,14 @@
 #pragma once
 
 #include "projectexplorer_export.h"
-#include "projectconfigurationaspects.h"
+
+#include <utils/aspects.h>
 
 namespace Utils { class FilePath; }
 
 namespace ProjectExplorer {
 
-class PROJECTEXPLORER_EXPORT BuildDirectoryAspect : public StringAspect
+class PROJECTEXPLORER_EXPORT BuildDirectoryAspect : public Utils::StringAspect
 {
     Q_OBJECT
 public:
@@ -43,7 +44,7 @@ public:
     bool isShadowBuild() const;
     void setProblem(const QString &description);
 
-    void addToLayout(LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
 private:
     void toMap(QVariantMap &map) const override;
@@ -55,7 +56,7 @@ private:
     Private * const d;
 };
 
-class PROJECTEXPLORER_EXPORT SeparateDebugInfoAspect : public TriStateAspect
+class PROJECTEXPLORER_EXPORT SeparateDebugInfoAspect : public Utils::TriStateAspect
 {
     Q_OBJECT
 public:
diff --git a/src/plugins/projectexplorer/buildconfiguration.cpp b/src/plugins/projectexplorer/buildconfiguration.cpp
index b685e26773e..260f05f1c81 100644
--- a/src/plugins/projectexplorer/buildconfiguration.cpp
+++ b/src/plugins/projectexplorer/buildconfiguration.cpp
@@ -46,14 +46,15 @@
 #include "toolchain.h"
 
 #include <coreplugin/idocument.h>
-#include <coreplugin/variablechooser.h>
 
 #include <utils/algorithm.h>
 #include <utils/detailswidget.h>
 #include <utils/macroexpander.h>
 #include <utils/mimetypes/mimedatabase.h>
 #include <utils/mimetypes/mimetype.h>
+#include <utils/layoutbuilder.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QDebug>
@@ -306,7 +307,7 @@ NamedWidget *BuildConfiguration::createConfigWidget()
     }
 
     LayoutBuilder builder(widget);
-    for (ProjectConfigurationAspect *aspect : aspects()) {
+    for (BaseAspect *aspect : aspects()) {
         if (aspect->isVisible())
             aspect->addToLayout(builder.startNewRow());
     }
diff --git a/src/plugins/projectexplorer/buildpropertiessettings.h b/src/plugins/projectexplorer/buildpropertiessettings.h
index 13eeebb6bcb..17432b45e0d 100644
--- a/src/plugins/projectexplorer/buildpropertiessettings.h
+++ b/src/plugins/projectexplorer/buildpropertiessettings.h
@@ -25,7 +25,9 @@
 
 #pragma once
 
-#include "projectconfigurationaspects.h"
+#include "projectexplorer_export.h"
+
+#include <utils/aspects.h>
 
 namespace ProjectExplorer {
 
@@ -33,9 +35,9 @@ class PROJECTEXPLORER_EXPORT BuildPropertiesSettings
 {
 public:
     QString buildDirectoryTemplate;
-    TriState separateDebugInfo;
-    TriState qmlDebugging;
-    TriState qtQuickCompiler;
+    Utils::TriState separateDebugInfo;
+    Utils::TriState qmlDebugging;
+    Utils::TriState qtQuickCompiler;
     bool showQtSettings = false;
 };
 
diff --git a/src/plugins/projectexplorer/buildpropertiessettingspage.cpp b/src/plugins/projectexplorer/buildpropertiessettingspage.cpp
index 7cd3766e50e..a3294fd83ff 100644
--- a/src/plugins/projectexplorer/buildpropertiessettingspage.cpp
+++ b/src/plugins/projectexplorer/buildpropertiessettingspage.cpp
@@ -28,7 +28,7 @@
 #include "buildpropertiessettings.h"
 #include "projectexplorer.h"
 
-#include <coreplugin/variablechooser.h>
+#include <utils/variablechooser.h>
 
 #include <QComboBox>
 #include <QFormLayout>
@@ -36,6 +36,8 @@
 #include <QLineEdit>
 #include <QPushButton>
 
+using namespace Utils;
+
 namespace ProjectExplorer {
 namespace Internal {
 
@@ -71,7 +73,7 @@ public:
             resetButton->setEnabled(m_buildDirTemplateLineEdit.text()
                                     != ProjectExplorerPlugin::defaultBuildDirectoryTemplate());
         });
-        const auto chooser = new Core::VariableChooser(this);
+        const auto chooser = new VariableChooser(this);
         chooser->addSupportedWidget(&m_buildDirTemplateLineEdit);
         m_buildDirTemplateLineEdit.setText(settings.buildDirectoryTemplate);
         buildDirLayout->addWidget(&m_buildDirTemplateLineEdit);
diff --git a/src/plugins/projectexplorer/buildstep.cpp b/src/plugins/projectexplorer/buildstep.cpp
index 94299bc5dfd..905667411ee 100644
--- a/src/plugins/projectexplorer/buildstep.cpp
+++ b/src/plugins/projectexplorer/buildstep.cpp
@@ -35,13 +35,13 @@
 #include "projectexplorerconstants.h"
 #include "target.h"
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/algorithm.h>
 #include <utils/fileinprojectfinder.h>
+#include <utils/layoutbuilder.h>
 #include <utils/outputformatter.h>
 #include <utils/qtcassert.h>
 #include <utils/runextensions.h>
+#include <utils/variablechooser.h>
 
 #include <QFormLayout>
 #include <QFutureWatcher>
@@ -159,7 +159,7 @@ BuildStepConfigWidget *BuildStep::createConfigWidget()
 
     {
         LayoutBuilder builder(widget);
-        for (ProjectConfigurationAspect *aspect : m_aspects) {
+        for (BaseAspect *aspect : qAsConst(m_aspects)) {
             if (aspect->isVisible())
                 aspect->addToLayout(builder.startNewRow());
         }
@@ -171,7 +171,7 @@ BuildStepConfigWidget *BuildStep::createConfigWidget()
     widget->setSummaryUpdater(m_summaryUpdater);
 
     if (m_addMacroExpander)
-        Core::VariableChooser::addSupportForChildWidgets(widget, macroExpander());
+        VariableChooser::addSupportForChildWidgets(widget, macroExpander());
 
     return widget;
 }
@@ -493,7 +493,7 @@ BuildStepConfigWidget::BuildStepConfigWidget(BuildStep *step)
     connect(m_step, &ProjectConfiguration::displayNameChanged,
             this, &BuildStepConfigWidget::updateSummary);
     for (auto aspect : step->aspects()) {
-        connect(aspect, &ProjectConfigurationAspect::changed,
+        connect(aspect, &BaseAspect::changed,
                 this, &BuildStepConfigWidget::recreateSummary);
     }
 }
diff --git a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
index 5b502feb8c8..d2f1d932c46 100644
--- a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
+++ b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
@@ -35,11 +35,11 @@
 #include "target.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <utils/detailswidget.h>
 #include <utils/pathchooser.h>
 #include <utils/stringutils.h>
+#include <utils/variablechooser.h>
 
 #include <QDialog>
 #include <QDialogButtonBox>
diff --git a/src/plugins/projectexplorer/customparser.h b/src/plugins/projectexplorer/customparser.h
index c1e01780225..b0df82c3f92 100644
--- a/src/plugins/projectexplorer/customparser.h
+++ b/src/plugins/projectexplorer/customparser.h
@@ -93,7 +93,7 @@ public:
     CustomParserExpression warning;
 };
 
-class PROJECTEXPLORER_EXPORT CustomParsersAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT CustomParsersAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 public:
diff --git a/src/plugins/projectexplorer/environmentaspect.h b/src/plugins/projectexplorer/environmentaspect.h
index f79f9e29738..79c1d622e85 100644
--- a/src/plugins/projectexplorer/environmentaspect.h
+++ b/src/plugins/projectexplorer/environmentaspect.h
@@ -29,6 +29,7 @@
 
 #include "runconfiguration.h"
 
+#include <utils/aspects.h>
 #include <utils/environment.h>
 
 #include <QList>
@@ -36,7 +37,7 @@
 
 namespace ProjectExplorer {
 
-class PROJECTEXPLORER_EXPORT EnvironmentAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT EnvironmentAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/projectexplorer/kitinformation.cpp b/src/plugins/projectexplorer/kitinformation.cpp
index 729e1594f55..df9fcfbebc9 100644
--- a/src/plugins/projectexplorer/kitinformation.cpp
+++ b/src/plugins/projectexplorer/kitinformation.cpp
@@ -36,7 +36,6 @@
 #include "toolchainmanager.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 #include <ssh/sshconnection.h>
 #include <utils/algorithm.h>
 #include <utils/elidinglabel.h>
@@ -45,6 +44,7 @@
 #include <utils/macroexpander.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QComboBox>
@@ -1162,7 +1162,7 @@ private:
     {
         Utils::MacroExpander *expander = m_kit->macroExpander();
         Utils::EnvironmentDialog::Polisher polisher = [expander](QWidget *w) {
-            Core::VariableChooser::addSupportForChildWidgets(w, expander);
+            Utils::VariableChooser::addSupportForChildWidgets(w, expander);
         };
         auto changes = Utils::EnvironmentDialog::getEnvironmentItems(m_summaryLabel,
                                                                      currentEnvironment(),
diff --git a/src/plugins/projectexplorer/kitmanagerconfigwidget.cpp b/src/plugins/projectexplorer/kitmanagerconfigwidget.cpp
index e3d061cfa4d..dda505e7692 100644
--- a/src/plugins/projectexplorer/kitmanagerconfigwidget.cpp
+++ b/src/plugins/projectexplorer/kitmanagerconfigwidget.cpp
@@ -33,14 +33,14 @@
 #include "projectexplorerconstants.h"
 #include "task.h"
 
-#include <coreplugin/variablechooser.h>
-
 #include <utils/algorithm.h>
 #include <utils/detailswidget.h>
+#include <utils/layoutbuilder.h>
 #include <utils/macroexpander.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <QAction>
 #include <QRegularExpression>
@@ -59,6 +59,8 @@
 
 static const char WORKING_COPY_KIT_ID[] = "modified kit";
 
+using namespace Utils;
+
 namespace ProjectExplorer {
 namespace Internal {
 
@@ -116,7 +118,7 @@ KitManagerConfigWidget::KitManagerConfigWidget(Kit *k) :
     connect(km, &KitManager::kitUpdated,
             this, &KitManagerConfigWidget::kitWasUpdated);
 
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_nameEdit);
     chooser->addMacroExpanderProvider([this]() { return m_modifiedKit->macroExpander(); });
 
diff --git a/src/plugins/projectexplorer/makestep.cpp b/src/plugins/projectexplorer/makestep.cpp
index d446eae20ee..885af473177 100644
--- a/src/plugins/projectexplorer/makestep.cpp
+++ b/src/plugins/projectexplorer/makestep.cpp
@@ -34,15 +34,16 @@
 #include "projectexplorerconstants.h"
 #include "target.h"
 #include "toolchain.h"
-#include "projectconfigurationaspects.h"
 
-#include <coreplugin/variablechooser.h>
+#include <utils/aspects.h>
 #include <utils/environment.h>
 #include <utils/hostosinfo.h>
+#include <utils/layoutbuilder.h>
 #include <utils/optional.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcprocess.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <QCheckBox>
 #include <QFormLayout>
@@ -381,8 +382,7 @@ BuildStepConfigWidget *MakeStep::createConfigWidget()
         targetsList->hide();
     }
 
-    Core::VariableChooser::addSupportForChildWidgets(widget, macroExpander());
-
+    VariableChooser::addSupportForChildWidgets(widget, macroExpander());
 
     widget->setSummaryUpdater([this] {
         const CommandLine make = effectiveMakeCommand(MakeStep::Display);
diff --git a/src/plugins/projectexplorer/makestep.h b/src/plugins/projectexplorer/makestep.h
index e66b82ee36c..9db7b571175 100644
--- a/src/plugins/projectexplorer/makestep.h
+++ b/src/plugins/projectexplorer/makestep.h
@@ -27,6 +27,7 @@
 
 #include "abstractprocessstep.h"
 
+#include <utils/aspects.h>
 #include <utils/fileutils.h>
 
 namespace Utils { class Environment; }
@@ -35,13 +36,6 @@ namespace ProjectExplorer {
 
 namespace Internal { class MakeStepConfigWidget; }
 
-class AspectContainer;
-class BoolAspect;
-class IntegerAspect;
-class StringAspect;
-class StringListAspect;
-class TextDisplay;
-
 class PROJECTEXPLORER_EXPORT MakeStep : public ProjectExplorer::AbstractProcessStep
 {
     Q_OBJECT
@@ -97,15 +91,15 @@ private:
     static int defaultJobCount();
     QStringList jobArguments() const;
 
-    StringListAspect *m_buildTargetsAspect = nullptr;
+    Utils::StringListAspect *m_buildTargetsAspect = nullptr;
     QStringList m_availableTargets;
-    StringAspect *m_makeCommandAspect = nullptr;
-    StringAspect *m_userArgumentsAspect = nullptr;
-    AspectContainer *m_jobCountContainer = nullptr;
-    IntegerAspect *m_userJobCountAspect = nullptr;
-    BoolAspect *m_overrideMakeflagsAspect = nullptr;
-    TextDisplay *m_nonOverrideWarning = nullptr;
-    BoolAspect *m_cleanAspect = nullptr;
+    Utils::StringAspect *m_makeCommandAspect = nullptr;
+    Utils::StringAspect *m_userArgumentsAspect = nullptr;
+    Utils::AspectContainer *m_jobCountContainer = nullptr;
+    Utils::IntegerAspect *m_userJobCountAspect = nullptr;
+    Utils::BoolAspect *m_overrideMakeflagsAspect = nullptr;
+    Utils::TextDisplay *m_nonOverrideWarning = nullptr;
+    Utils::BoolAspect *m_cleanAspect = nullptr;
     bool m_disablingForSubDirsSupported = false;
     bool m_enabledForSubDirs = true;
 };
diff --git a/src/plugins/projectexplorer/processstep.cpp b/src/plugins/projectexplorer/processstep.cpp
index 919987e7274..ee7b72bad95 100644
--- a/src/plugins/projectexplorer/processstep.cpp
+++ b/src/plugins/projectexplorer/processstep.cpp
@@ -29,11 +29,11 @@
 #include "buildconfiguration.h"
 #include "kit.h"
 #include "processparameters.h"
-#include "projectconfigurationaspects.h"
 #include "projectexplorerconstants.h"
 #include "projectexplorer_export.h"
 #include "target.h"
 
+#include <utils/aspects.h>
 #include <utils/fileutils.h>
 #include <utils/outputformatter.h>
 
diff --git a/src/plugins/projectexplorer/projectconfiguration.cpp b/src/plugins/projectexplorer/projectconfiguration.cpp
index d3c98a06136..e74a1c8ccab 100644
--- a/src/plugins/projectexplorer/projectconfiguration.cpp
+++ b/src/plugins/projectexplorer/projectconfiguration.cpp
@@ -37,179 +37,6 @@ using namespace ProjectExplorer;
 const char CONFIGURATION_ID_KEY[] = "ProjectExplorer.ProjectConfiguration.Id";
 const char DISPLAY_NAME_KEY[] = "ProjectExplorer.ProjectConfiguration.DisplayName";
 
-// ProjectConfigurationAspect
-
-ProjectConfigurationAspect::ProjectConfigurationAspect() = default;
-
-ProjectConfigurationAspect::~ProjectConfigurationAspect() = default;
-
-void ProjectConfigurationAspect::setConfigWidgetCreator
-    (const ConfigWidgetCreator &configWidgetCreator)
-{
-    m_configWidgetCreator = configWidgetCreator;
-}
-
-QWidget *ProjectConfigurationAspect::createConfigWidget() const
-{
-    return m_configWidgetCreator ? m_configWidgetCreator() : nullptr;
-}
-
-void ProjectConfigurationAspect::addToLayout(LayoutBuilder &)
-{
-}
-
-// LayoutBuilder
-
-LayoutBuilder::LayoutBuilder(QWidget *parent, LayoutType layoutType)
-{
-    if (layoutType == FormLayout) {
-        m_formLayout = new QFormLayout(parent);
-        m_formLayout->setContentsMargins(0, 0, 0, 0);
-        m_formLayout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
-    } else {
-        m_gridLayout = new QGridLayout(parent);
-        m_gridLayout->setContentsMargins(0, 0, 0, 0);
-    }
-}
-
-LayoutBuilder::LayoutBuilder(QLayout *layout)
-{
-    if (auto fl = qobject_cast<QFormLayout *>(layout)) {
-        m_formLayout = fl;
-    } else if (auto grid = qobject_cast<QGridLayout *>(layout)) {
-        m_gridLayout = grid;
-        m_currentGridRow = grid->rowCount();
-        m_currentGridColumn = 0;
-    }
-}
-
-LayoutBuilder::~LayoutBuilder()
-{
-    flushPendingFormItems();
-}
-
-LayoutBuilder &LayoutBuilder::startNewRow()
-{
-    if (m_formLayout)
-        flushPendingFormItems();
-    if (m_gridLayout) {
-        if (m_currentGridColumn != 0) {
-            ++m_currentGridRow;
-            m_currentGridColumn = 0;
-        }
-    }
-    return *this;
-}
-
-LayoutBuilder &LayoutBuilder::addRow(const LayoutItem &item)
-{
-    startNewRow();
-    addItem(item);
-    return *this;
-}
-
-void LayoutBuilder::flushPendingFormItems()
-{
-    QTC_ASSERT(m_formLayout, return);
-
-    if (m_pendingFormItems.isEmpty())
-        return;
-
-    // If there are more than two items, we cram the last ones in one hbox.
-    if (m_pendingFormItems.size() > 2) {
-        auto hbox = new QHBoxLayout;
-        hbox->setContentsMargins(0, 0, 0, 0);
-        for (int i = 1; i < m_pendingFormItems.size(); ++i) {
-            if (QWidget *w = m_pendingFormItems.at(i).widget)
-                hbox->addWidget(w);
-            else if (QLayout *l = m_pendingFormItems.at(i).layout)
-                hbox->addItem(l);
-            else
-                QTC_CHECK(false);
-        }
-        while (m_pendingFormItems.size() >= 2)
-            m_pendingFormItems.takeLast();
-        m_pendingFormItems.append(LayoutItem(hbox));
-    }
-
-    if (m_pendingFormItems.size() == 1) { // One one item given, so this spans both columns.
-        if (auto layout = m_pendingFormItems.at(0).layout)
-            m_formLayout->addRow(layout);
-        else if (auto widget = m_pendingFormItems.at(0).widget)
-            m_formLayout->addRow(widget);
-    } else if (m_pendingFormItems.size() == 2) { // Normal case, both columns used.
-        if (auto label = m_pendingFormItems.at(0).widget) {
-            if (auto layout = m_pendingFormItems.at(1).layout)
-                m_formLayout->addRow(label, layout);
-            else if (auto widget = m_pendingFormItems.at(1).widget)
-                m_formLayout->addRow(label, widget);
-        } else  {
-            if (auto layout = m_pendingFormItems.at(1).layout)
-                m_formLayout->addRow(m_pendingFormItems.at(0).text, layout);
-            else if (auto widget = m_pendingFormItems.at(1).widget)
-                m_formLayout->addRow(m_pendingFormItems.at(0).text, widget);
-        }
-    } else {
-        QTC_CHECK(false);
-    }
-
-    m_pendingFormItems.clear();
-}
-
-QLayout *LayoutBuilder::layout() const
-{
-    if (m_formLayout)
-        return m_formLayout;
-    return m_gridLayout;
-}
-
-LayoutBuilder &LayoutBuilder::addItem(LayoutItem item)
-{
-    if (item.widget && !item.widget->parent())
-        item.widget->setParent(layout()->parentWidget());
-
-    if (item.aspect) {
-        item.aspect->addToLayout(*this);
-    } else {
-        if (m_gridLayout) {
-            if (auto widget = item.widget)
-                m_gridLayout->addWidget(widget, m_currentGridRow, m_currentGridColumn, 1, item.span, item.align);
-            m_currentGridColumn += item.span;
-        } else {
-            m_pendingFormItems.append(item);
-        }
-    }
-    return *this;
-}
-
-
-// ProjectConfigurationAspects
-
-ProjectConfigurationAspects::ProjectConfigurationAspects() = default;
-
-ProjectConfigurationAspects::~ProjectConfigurationAspects()
-{
-    qDeleteAll(base());
-}
-
-ProjectConfigurationAspect *ProjectConfigurationAspects::aspect(Utils::Id id) const
-{
-    return Utils::findOrDefault(base(), Utils::equal(&ProjectConfigurationAspect::id, id));
-}
-
-void ProjectConfigurationAspects::fromMap(const QVariantMap &map) const
-{
-    for (ProjectConfigurationAspect *aspect : *this)
-        aspect->fromMap(map);
-}
-
-void ProjectConfigurationAspects::toMap(QVariantMap &map) const
-{
-    for (ProjectConfigurationAspect *aspect : *this)
-        aspect->toMap(map);
-}
-
-
 // ProjectConfiguration
 
 ProjectConfiguration::ProjectConfiguration(QObject *parent, Utils::Id id)
@@ -302,14 +129,14 @@ bool ProjectConfiguration::fromMap(const QVariantMap &map)
     return true;
 }
 
-ProjectConfigurationAspect *ProjectConfiguration::aspect(Utils::Id id) const
+Utils::BaseAspect *ProjectConfiguration::aspect(Utils::Id id) const
 {
     return m_aspects.aspect(id);
 }
 
 void ProjectConfiguration::acquaintAspects()
 {
-    for (ProjectConfigurationAspect *aspect : m_aspects)
+    for (Utils::BaseAspect *aspect : m_aspects)
         aspect->acquaintSiblings(m_aspects);
 }
 
diff --git a/src/plugins/projectexplorer/projectconfiguration.h b/src/plugins/projectexplorer/projectconfiguration.h
index 1008930d076..b2161e7f1c3 100644
--- a/src/plugins/projectexplorer/projectconfiguration.h
+++ b/src/plugins/projectexplorer/projectconfiguration.h
@@ -27,6 +27,7 @@
 
 #include "projectexplorer_export.h"
 
+#include <utils/aspects.h>
 #include <utils/displayname.h>
 #include <utils/id.h>
 
@@ -36,150 +37,12 @@
 #include <QVariantMap>
 #include <QWidget>
 
-QT_BEGIN_NAMESPACE
-class QFormLayout;
-class QGridLayout;
-QT_END_NAMESPACE
-
 namespace ProjectExplorer {
 
 class Kit;
 class Project;
-class ProjectConfigurationAspect;
-class ProjectConfigurationAspects;
 class Target;
 
-class PROJECTEXPLORER_EXPORT LayoutBuilder
-{
-public:
-    enum LayoutType { GridLayout, FormLayout };
-    explicit LayoutBuilder(QWidget *parent, LayoutType layoutType = FormLayout);
-    explicit LayoutBuilder(QLayout *layout); // Adds to existing layout.
-
-    ~LayoutBuilder();
-
-    class LayoutItem
-    {
-    public:
-        LayoutItem(QLayout *layout, int span = 1) : layout(layout), span(span) {}
-        LayoutItem(QWidget *widget, int span = 1, Qt::Alignment align = {})
-            : widget(widget), span(span), align(align) {}
-        LayoutItem(ProjectConfigurationAspect *aspect) : aspect(aspect) {}
-        LayoutItem(const QString &text) : text(text) {}
-
-        QLayout *layout = nullptr;
-        QWidget *widget = nullptr;
-        ProjectConfigurationAspect *aspect = nullptr;
-        QString text;
-        int span = 1;
-        Qt::Alignment align;
-    };
-
-    template<typename ...Items>
-    LayoutBuilder &addItems(LayoutItem first, Items... rest) {
-        return addItem(first).addItems(rest...);
-    }
-    LayoutBuilder &addItems() { return *this; }
-    LayoutBuilder &addItem(LayoutItem item);
-
-    LayoutBuilder &startNewRow();
-    LayoutBuilder &addRow(const LayoutItem &item);
-
-    QLayout *layout() const;
-
-private:
-    void flushPendingFormItems();
-
-    QFormLayout *m_formLayout = nullptr;
-    QGridLayout *m_gridLayout = nullptr;
-    QList<LayoutItem> m_pendingFormItems;
-    int m_currentGridRow = 0;
-    int m_currentGridColumn = 0;
-};
-
-class PROJECTEXPLORER_EXPORT ProjectConfigurationAspect : public QObject
-{
-    Q_OBJECT
-
-public:
-    ProjectConfigurationAspect();
-    ~ProjectConfigurationAspect() override;
-
-    void setId(Utils::Id id) { m_id = id; }
-    void setDisplayName(const QString &displayName) { m_displayName = displayName; }
-    void setSettingsKey(const QString &settingsKey) { m_settingsKey = settingsKey; }
-
-    Utils::Id id() const { return m_id; }
-    QString displayName() const { return m_displayName; }
-    QString settingsKey() const { return  m_settingsKey; }
-
-    bool isVisible() const { return m_visible; }
-    void setVisible(bool visible) { m_visible = visible; }
-
-    using ConfigWidgetCreator = std::function<QWidget *()>;
-    void setConfigWidgetCreator(const ConfigWidgetCreator &configWidgetCreator);
-    QWidget *createConfigWidget() const;
-
-    virtual void fromMap(const QVariantMap &) {}
-    virtual void toMap(QVariantMap &) const {}
-    virtual void acquaintSiblings(const ProjectConfigurationAspects &) {}
-
-    virtual void addToLayout(LayoutBuilder &builder);
-
-signals:
-    void changed();
-
-protected:
-    virtual void setVisibleDynamic(bool visible) { Q_UNUSED(visible) } // TODO: Better name? Merge with setVisible() somehow?
-
-    Utils::Id m_id;
-    QString m_displayName;
-    QString m_settingsKey; // Name of data in settings.
-    bool m_visible = true;
-    ConfigWidgetCreator m_configWidgetCreator;
-};
-
-class PROJECTEXPLORER_EXPORT ProjectConfigurationAspects
-        : private QList<ProjectConfigurationAspect *>
-{
-    using Base = QList<ProjectConfigurationAspect *>;
-
-public:
-    ProjectConfigurationAspects();
-    ProjectConfigurationAspects(const ProjectConfigurationAspects &) = delete;
-    ProjectConfigurationAspects &operator=(const ProjectConfigurationAspects &) = delete;
-    ~ProjectConfigurationAspects();
-
-    template <class Aspect, typename ...Args>
-    Aspect *addAspect(Args && ...args)
-    {
-        auto aspect = new Aspect(args...);
-        append(aspect);
-        return aspect;
-    }
-
-    ProjectConfigurationAspect *aspect(Utils::Id id) const;
-
-    template <typename T> T *aspect() const
-    {
-        for (ProjectConfigurationAspect *aspect : *this)
-            if (T *result = qobject_cast<T *>(aspect))
-                return result;
-        return nullptr;
-    }
-
-    void fromMap(const QVariantMap &map) const;
-    void toMap(QVariantMap &map) const;
-
-    using Base::append;
-    using Base::begin;
-    using Base::end;
-
-private:
-    Base &base() { return *this; }
-    const Base &base() const { return *this; }
-};
-
 class PROJECTEXPLORER_EXPORT ProjectConfiguration : public QObject
 {
     Q_OBJECT
@@ -218,9 +81,9 @@ public:
         return m_aspects.addAspect<Aspect>(std::forward<Args>(args)...);
     }
 
-    const ProjectConfigurationAspects &aspects() const { return m_aspects; }
+    const Utils::BaseAspects &aspects() const { return m_aspects; }
 
-    ProjectConfigurationAspect *aspect(Utils::Id id) const;
+    Utils::BaseAspect *aspect(Utils::Id id) const;
     template <typename T> T *aspect() const { return m_aspects.aspect<T>(); }
 
     void acquaintAspects();
@@ -230,7 +93,7 @@ signals:
     void toolTipChanged();
 
 protected:
-    ProjectConfigurationAspects m_aspects;
+    Utils::BaseAspects m_aspects;
 
 private:
     QPointer<Target> m_target;
diff --git a/src/plugins/projectexplorer/projectexplorer.pro b/src/plugins/projectexplorer/projectexplorer.pro
index 1e6a4274304..520f63d2275 100644
--- a/src/plugins/projectexplorer/projectexplorer.pro
+++ b/src/plugins/projectexplorer/projectexplorer.pro
@@ -163,7 +163,6 @@ HEADERS += projectexplorer.h \
     projectmacro.h \
     makestep.h \
     parseissuesdialog.h \
-    projectconfigurationaspects.h \
     treescanner.h \
     rawprojectpart.h \
     simpleprojectwizard.h
@@ -310,7 +309,6 @@ SOURCES += projectexplorer.cpp \
     projectmacro.cpp \
     makestep.cpp \
     parseissuesdialog.cpp \
-    projectconfigurationaspects.cpp \
     treescanner.cpp \
     rawprojectpart.cpp \
     simpleprojectwizard.cpp
diff --git a/src/plugins/projectexplorer/projectexplorer.qbs b/src/plugins/projectexplorer/projectexplorer.qbs
index 2befdbabfa3..002a620f010 100644
--- a/src/plugins/projectexplorer/projectexplorer.qbs
+++ b/src/plugins/projectexplorer/projectexplorer.qbs
@@ -107,7 +107,6 @@ Project {
                 "processstep.cpp", "processstep.h",
                 "project.cpp", "project.h",
                 "projectconfiguration.cpp", "projectconfiguration.h",
-                "projectconfigurationaspects.cpp", "projectconfigurationaspects.h",
                 "projectconfigurationmodel.cpp", "projectconfigurationmodel.h",
                 "projectexplorer.cpp", "projectexplorer.h",
                 "projectexplorer.qrc",
diff --git a/src/plugins/projectexplorer/runconfiguration.cpp b/src/plugins/projectexplorer/runconfiguration.cpp
index 596852d4bdf..8f8c8346d80 100644
--- a/src/plugins/projectexplorer/runconfiguration.cpp
+++ b/src/plugins/projectexplorer/runconfiguration.cpp
@@ -43,13 +43,14 @@
 #include <utils/algorithm.h>
 #include <utils/checkablemessagebox.h>
 #include <utils/detailswidget.h>
+#include <utils/layoutbuilder.h>
 #include <utils/outputformatter.h>
 #include <utils/qtcassert.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <coreplugin/icontext.h>
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <QDir>
 #include <QFormLayout>
@@ -223,13 +224,13 @@ QWidget *RunConfiguration::createConfigurationWidget()
     auto widget = new QWidget;
     {
         LayoutBuilder builder(widget);
-        for (ProjectConfigurationAspect *aspect : m_aspects) {
+        for (BaseAspect *aspect : qAsConst(m_aspects)) {
             if (aspect->isVisible())
                 aspect->addToLayout(builder.startNewRow());
         }
     }
 
-    Core::VariableChooser::addSupportForChildWidgets(widget, &m_expander);
+    VariableChooser::addSupportForChildWidgets(widget, &m_expander);
 
     auto detailsWidget = new Utils::DetailsWidget;
     detailsWidget->setState(DetailsWidget::NoSummary);
@@ -245,7 +246,7 @@ void RunConfiguration::addAspectFactory(const AspectFactory &aspectFactory)
 QMap<Utils::Id, QVariantMap> RunConfiguration::aspectData() const
 {
     QMap<Utils::Id, QVariantMap> data;
-    for (ProjectConfigurationAspect *aspect : m_aspects)
+    for (BaseAspect *aspect : qAsConst(m_aspects))
         aspect->toMap(data[aspect->id()]);
     return data;
 }
diff --git a/src/plugins/projectexplorer/runconfiguration.h b/src/plugins/projectexplorer/runconfiguration.h
index 8e906e1d02c..170028aee96 100644
--- a/src/plugins/projectexplorer/runconfiguration.h
+++ b/src/plugins/projectexplorer/runconfiguration.h
@@ -32,6 +32,7 @@
 #include "projectexplorerconstants.h"
 #include "task.h"
 
+#include <utils/aspects.h>
 #include <utils/environment.h>
 #include <utils/macroexpander.h>
 #include <utils/port.h>
@@ -90,7 +91,7 @@ protected:
  *
  */
 
-class PROJECTEXPLORER_EXPORT GlobalOrProjectAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT GlobalOrProjectAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
@@ -157,7 +158,7 @@ public:
         return nullptr;
     }
 
-    using AspectFactory = std::function<ProjectConfigurationAspect *(Target *)>;
+    using AspectFactory = std::function<Utils::BaseAspect *(Target *)>;
     template <class T> static void registerAspect()
     {
         addAspectFactory([](Target *target) { return new T(target); });
diff --git a/src/plugins/projectexplorer/runconfigurationaspects.cpp b/src/plugins/projectexplorer/runconfigurationaspects.cpp
index ae2f1fb1e5b..3f44fd016d2 100644
--- a/src/plugins/projectexplorer/runconfigurationaspects.cpp
+++ b/src/plugins/projectexplorer/runconfigurationaspects.cpp
@@ -34,6 +34,7 @@
 
 #include <utils/detailsbutton.h>
 #include <utils/fancylineedit.h>
+#include <utils/layoutbuilder.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcprocess.h>
 #include <utils/utilsicons.h>
@@ -171,7 +172,7 @@ void WorkingDirectoryAspect::addToLayout(LayoutBuilder &builder)
     builder.addItems(tr("Working directory:"), m_chooser.data(), m_resetButton.data());
 }
 
-void WorkingDirectoryAspect::acquaintSiblings(const ProjectConfigurationAspects &siblings)
+void WorkingDirectoryAspect::acquaintSiblings(const BaseAspects &siblings)
 {
     m_envAspect = siblings.aspect<EnvironmentAspect>();
 }
@@ -498,7 +499,7 @@ void ExecutableAspect::setExecutable(const FilePath &executable)
 
 void ExecutableAspect::setSettingsKey(const QString &key)
 {
-    ProjectConfigurationAspect::setSettingsKey(key);
+    BaseAspect::setSettingsKey(key);
     m_executable.setSettingsKey(key);
 }
 
diff --git a/src/plugins/projectexplorer/runconfigurationaspects.h b/src/plugins/projectexplorer/runconfigurationaspects.h
index 59d2d141b35..038341c4f6f 100644
--- a/src/plugins/projectexplorer/runconfigurationaspects.h
+++ b/src/plugins/projectexplorer/runconfigurationaspects.h
@@ -25,10 +25,11 @@
 
 #pragma once
 
-#include "projectconfigurationaspects.h"
 #include "applicationlauncher.h"
 #include "environmentaspect.h"
 
+#include <utils/aspects.h>
+
 #include <QPointer>
 
 QT_BEGIN_NAMESPACE
@@ -41,14 +42,14 @@ namespace Utils { class ExpandButton; }
 
 namespace ProjectExplorer {
 
-class PROJECTEXPLORER_EXPORT TerminalAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT TerminalAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
 public:
     TerminalAspect();
 
-    void addToLayout(LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
     bool useTerminal() const;
     void setUseTerminalHint(bool useTerminal);
@@ -67,15 +68,15 @@ private:
     QPointer<QCheckBox> m_checkBox; // Owned by RunConfigWidget
 };
 
-class PROJECTEXPLORER_EXPORT WorkingDirectoryAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT WorkingDirectoryAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
 public:
     WorkingDirectoryAspect();
 
-    void addToLayout(LayoutBuilder &builder) override;
-    void acquaintSiblings(const ProjectConfigurationAspects &) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
+    void acquaintSiblings(const Utils::BaseAspects &) override;
 
     Utils::FilePath workingDirectory(const Utils::MacroExpander *expander) const;
     Utils::FilePath defaultWorkingDirectory() const;
@@ -97,14 +98,14 @@ private:
     QPointer<QToolButton> m_resetButton;
 };
 
-class PROJECTEXPLORER_EXPORT ArgumentsAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT ArgumentsAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
 public:
     ArgumentsAspect();
 
-    void addToLayout(LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
     QString arguments(const Utils::MacroExpander *expander) const;
     QString unexpandedArguments() const;
@@ -129,7 +130,7 @@ private:
     std::function<QString()> m_resetter;
 };
 
-class PROJECTEXPLORER_EXPORT UseLibraryPathsAspect : public BoolAspect
+class PROJECTEXPLORER_EXPORT UseLibraryPathsAspect : public Utils::BoolAspect
 {
     Q_OBJECT
 
@@ -137,7 +138,7 @@ public:
     UseLibraryPathsAspect();
 };
 
-class PROJECTEXPLORER_EXPORT UseDyldSuffixAspect : public BoolAspect
+class PROJECTEXPLORER_EXPORT UseDyldSuffixAspect : public Utils::BoolAspect
 {
     Q_OBJECT
 
@@ -145,7 +146,7 @@ public:
     UseDyldSuffixAspect();
 };
 
-class PROJECTEXPLORER_EXPORT ExecutableAspect : public ProjectConfigurationAspect
+class PROJECTEXPLORER_EXPORT ExecutableAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
@@ -158,14 +159,14 @@ public:
 
     void setSettingsKey(const QString &key);
     void makeOverridable(const QString &overridingKey, const QString &useOverridableKey);
-    void addToLayout(LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
     void setLabelText(const QString &labelText);
     void setPlaceHolderText(const QString &placeHolderText);
     void setExecutablePathStyle(Utils::OsType osType);
     void setHistoryCompleter(const QString &historyCompleterKey);
     void setExpectedKind(const Utils::PathChooser::Kind expectedKind);
     void setEnvironment(const Utils::Environment &env);
-    void setDisplayStyle(StringAspect::DisplayStyle style);
+    void setDisplayStyle(Utils::StringAspect::DisplayStyle style);
 
 protected:
     void fromMap(const QVariantMap &map) override;
@@ -174,11 +175,11 @@ protected:
 private:
     QString executableText() const;
 
-    StringAspect m_executable;
-    StringAspect *m_alternativeExecutable = nullptr;
+    Utils::StringAspect m_executable;
+    Utils::StringAspect *m_alternativeExecutable = nullptr;
 };
 
-class PROJECTEXPLORER_EXPORT SymbolFileAspect : public StringAspect
+class PROJECTEXPLORER_EXPORT SymbolFileAspect : public Utils::StringAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/projectexplorer/runcontrol.cpp b/src/plugins/projectexplorer/runcontrol.cpp
index 7f0a0676ca1..12ab39a8c74 100644
--- a/src/plugins/projectexplorer/runcontrol.cpp
+++ b/src/plugins/projectexplorer/runcontrol.cpp
@@ -45,10 +45,10 @@
 #include <utils/outputformatter.h>
 #include <utils/qtcassert.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <coreplugin/icontext.h>
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 
 #include <QDir>
 #include <QFormLayout>
@@ -909,7 +909,7 @@ const MacroExpander *RunControl::macroExpander() const
     return d->macroExpander;
 }
 
-ProjectConfigurationAspect *RunControl::aspect(Utils::Id id) const
+BaseAspect *RunControl::aspect(Utils::Id id) const
 {
     return d->runConfiguration ? d->runConfiguration->aspect(id) : nullptr;
 }
diff --git a/src/plugins/projectexplorer/runcontrol.h b/src/plugins/projectexplorer/runcontrol.h
index b609815363c..0dfd35edf8c 100644
--- a/src/plugins/projectexplorer/runcontrol.h
+++ b/src/plugins/projectexplorer/runcontrol.h
@@ -224,7 +224,7 @@ public:
     Project *project() const;
     Kit *kit() const;
     const Utils::MacroExpander *macroExpander() const;
-    ProjectConfigurationAspect *aspect(Utils::Id id) const;
+    Utils::BaseAspect *aspect(Utils::Id id) const;
     template <typename T> T *aspect() const {
         return runConfiguration() ? runConfiguration()->aspect<T>() : nullptr;
     }
diff --git a/src/plugins/projectexplorer/runsettingspropertiespage.cpp b/src/plugins/projectexplorer/runsettingspropertiespage.cpp
index 002652c779d..577d5a5be10 100644
--- a/src/plugins/projectexplorer/runsettingspropertiespage.cpp
+++ b/src/plugins/projectexplorer/runsettingspropertiespage.cpp
@@ -474,7 +474,7 @@ QString RunSettingsWidget::uniqueRCName(const QString &name)
 
 void RunSettingsWidget::addRunControlWidgets()
 {
-    for (ProjectConfigurationAspect *aspect : m_runConfiguration->aspects()) {
+    for (Utils::BaseAspect *aspect : m_runConfiguration->aspects()) {
         if (QWidget *rcw = aspect->createConfigWidget()) {
             auto label = new QLabel(this);
             label->setText(aspect->displayName());
diff --git a/src/plugins/python/pythonrunconfiguration.cpp b/src/plugins/python/pythonrunconfiguration.cpp
index 209d0906b2e..059dfb31068 100644
--- a/src/plugins/python/pythonrunconfiguration.cpp
+++ b/src/plugins/python/pythonrunconfiguration.cpp
@@ -37,14 +37,15 @@
 
 #include <projectexplorer/buildsystem.h>
 #include <projectexplorer/localenvironmentaspect.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/runconfigurationaspects.h>
 #include <projectexplorer/target.h>
 #include <projectexplorer/taskhub.h>
 
 #include <texteditor/textdocument.h>
 
+#include <utils/aspects.h>
 #include <utils/fileutils.h>
+#include <utils/layoutbuilder.h>
 #include <utils/outputformatter.h>
 #include <utils/theme/theme.h>
 
@@ -133,7 +134,7 @@ private:
 
 ////////////////////////////////////////////////////////////////
 
-class InterpreterAspect : public ProjectConfigurationAspect
+class InterpreterAspect : public BaseAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/qbsprojectmanager/qbsbuildconfiguration.h b/src/plugins/qbsprojectmanager/qbsbuildconfiguration.h
index e2b38132b58..3d20c91df20 100644
--- a/src/plugins/qbsprojectmanager/qbsbuildconfiguration.h
+++ b/src/plugins/qbsprojectmanager/qbsbuildconfiguration.h
@@ -85,9 +85,9 @@ public:
     QString configurationName() const;
     QString equivalentCommandLine(const QbsBuildStepData &stepData) const;
 
-    ProjectExplorer::TriState qmlDebuggingSetting() const;
-    ProjectExplorer::TriState qtQuickCompilerSetting() const;
-    ProjectExplorer::TriState separateDebugInfoSetting() const;
+    Utils::TriState qmlDebuggingSetting() const;
+    Utils::TriState qtQuickCompilerSetting() const;
+    Utils::TriState separateDebugInfoSetting() const;
 
 signals:
     void qbsConfigurationChanged();
@@ -100,7 +100,7 @@ private:
     QStringList m_changedFiles;
     QStringList m_activeFileTags;
     QStringList m_products;
-    ProjectExplorer::StringAspect *m_configurationName = nullptr;
+    Utils::StringAspect *m_configurationName = nullptr;
     QbsBuildSystem *m_buildSystem = nullptr;
 };
 
diff --git a/src/plugins/qbsprojectmanager/qbsbuildstep.cpp b/src/plugins/qbsprojectmanager/qbsbuildstep.cpp
index 49f46ae7d11..3f1f8983f98 100644
--- a/src/plugins/qbsprojectmanager/qbsbuildstep.cpp
+++ b/src/plugins/qbsprojectmanager/qbsbuildstep.cpp
@@ -32,7 +32,6 @@
 #include "qbssettings.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablechooser.h>
 #include <projectexplorer/buildsteplist.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/projectexplorerconstants.h>
@@ -43,6 +42,7 @@
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
+#include <utils/variablechooser.h>
 
 #include <QBoxLayout>
 #include <QCheckBox>
@@ -637,7 +637,7 @@ QbsBuildStepConfigWidget::QbsBuildStepConfigWidget(QbsBuildStep *step) :
     cleanInstallRootCheckBox->setText(tr("Clean install root"));
     defaultInstallDirCheckBox->setText(tr("Use default location"));
 
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(propertyEdit);
     chooser->addSupportedWidget(installDirChooser->lineEdit());
     chooser->addMacroExpanderProvider([step] { return step->macroExpander(); });
diff --git a/src/plugins/qbsprojectmanager/qbscleanstep.cpp b/src/plugins/qbsprojectmanager/qbscleanstep.cpp
index 209ec759c18..7146e659fdc 100644
--- a/src/plugins/qbsprojectmanager/qbscleanstep.cpp
+++ b/src/plugins/qbsprojectmanager/qbscleanstep.cpp
@@ -41,6 +41,7 @@
 #include <QJsonObject>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace QbsProjectManager {
 namespace Internal {
diff --git a/src/plugins/qbsprojectmanager/qbscleanstep.h b/src/plugins/qbsprojectmanager/qbscleanstep.h
index d9fd6c489df..3e2f87e6021 100644
--- a/src/plugins/qbsprojectmanager/qbscleanstep.h
+++ b/src/plugins/qbsprojectmanager/qbscleanstep.h
@@ -28,11 +28,13 @@
 #include "qbsbuildconfiguration.h"
 
 #include <projectexplorer/buildstep.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/task.h>
 
+#include <utils/aspects.h>
+
 namespace QbsProjectManager {
 namespace Internal {
+
 class ErrorInfo;
 class QbsSession;
 
@@ -60,8 +62,8 @@ private:
     void createTaskAndOutput(ProjectExplorer::Task::TaskType type,
                              const QString &message, const QString &file, int line);
 
-    ProjectExplorer::BoolAspect *m_dryRunAspect = nullptr;
-    ProjectExplorer::BoolAspect *m_keepGoingAspect = nullptr;
+    Utils::BoolAspect *m_dryRunAspect = nullptr;
+    Utils::BoolAspect *m_keepGoingAspect = nullptr;
 
     QStringList m_products;
     QbsSession *m_session = nullptr;
diff --git a/src/plugins/qbsprojectmanager/qbsinstallstep.cpp b/src/plugins/qbsprojectmanager/qbsinstallstep.cpp
index 085caa8a7b7..93a15a58e50 100644
--- a/src/plugins/qbsprojectmanager/qbsinstallstep.cpp
+++ b/src/plugins/qbsprojectmanager/qbsinstallstep.cpp
@@ -38,6 +38,7 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/target.h>
 
+#include <utils/layoutbuilder.h>
 #include <utils/qtcassert.h>
 
 #include <QJsonObject>
@@ -45,6 +46,7 @@
 #include <QPlainTextEdit>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace QbsProjectManager {
 namespace Internal {
diff --git a/src/plugins/qbsprojectmanager/qbsinstallstep.h b/src/plugins/qbsprojectmanager/qbsinstallstep.h
index f414c105aa3..5ef48876e3a 100644
--- a/src/plugins/qbsprojectmanager/qbsinstallstep.h
+++ b/src/plugins/qbsprojectmanager/qbsinstallstep.h
@@ -29,11 +29,13 @@
 #include "qbssession.h"
 
 #include <projectexplorer/buildstep.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/task.h>
 
+#include <utils/aspects.h>
+
 namespace QbsProjectManager {
 namespace Internal {
+
 class ErrorInfo;
 class QbsSession;
 
@@ -62,9 +64,9 @@ private:
     void createTaskAndOutput(ProjectExplorer::Task::TaskType type,
                              const QString &message, const Utils::FilePath &file, int line);
 
-    ProjectExplorer::BoolAspect *m_cleanInstallRoot = nullptr;
-    ProjectExplorer::BoolAspect *m_dryRun = nullptr;
-    ProjectExplorer::BoolAspect *m_keepGoing = nullptr;
+    Utils::BoolAspect *m_cleanInstallRoot = nullptr;
+    Utils::BoolAspect *m_dryRun = nullptr;
+    Utils::BoolAspect *m_keepGoing = nullptr;
 
     QbsSession *m_session = nullptr;
     QString m_description;
diff --git a/src/plugins/qmakeprojectmanager/makefileparse.cpp b/src/plugins/qmakeprojectmanager/makefileparse.cpp
index 17e140f82e4..0a066633719 100644
--- a/src/plugins/qmakeprojectmanager/makefileparse.cpp
+++ b/src/plugins/qmakeprojectmanager/makefileparse.cpp
@@ -36,15 +36,15 @@
 #include <QTextStream>
 #include <QLoggingCategory>
 
-using namespace QmakeProjectManager;
-using namespace Internal;
 using namespace ProjectExplorer;
+using namespace Utils;;
 
-using Utils::FilePath;
-using Utils::QtcProcess;
 using QtSupport::QtVersionManager;
 using QtSupport::BaseQtVersion;
 
+namespace QmakeProjectManager {
+namespace Internal {
+
 static QString findQMakeLine(const QString &makefile, const QString &key)
 {
     QFile fi(makefile);
@@ -396,6 +396,8 @@ void MakeFileParse::parseCommandLine(const QString &command, const QString &proj
     }
 }
 
+} // Internal
+} // QmakeProjectManager
 
 // Unit tests:
 
diff --git a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
index d9b4e0fc20e..71f88256a9c 100644
--- a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
+++ b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
@@ -27,10 +27,11 @@
 
 #include "qmakeprojectmanager_global.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/buildconfiguration.h>
 #include <qtsupport/baseqtversion.h>
 
+#include <utils/aspects.h>
+
 namespace ProjectExplorer { class FileNode; }
 
 namespace QmakeProjectManager {
@@ -96,13 +97,13 @@ public:
     static bool isBuildDirAtSafeLocation(const QString &sourceDir, const QString &buildDir);
     bool isBuildDirAtSafeLocation() const;
 
-    ProjectExplorer::TriState separateDebugInfo() const;
+    Utils::TriState separateDebugInfo() const;
     void forceSeparateDebugInfo(bool sepDebugInfo);
 
-    ProjectExplorer::TriState qmlDebugging() const;
+    Utils::TriState qmlDebugging() const;
     void forceQmlDebugging(bool enable);
 
-    ProjectExplorer::TriState useQtQuickCompiler() const;
+    Utils::TriState useQtQuickCompiler() const;
     void forceQtQuickCompiler(bool enable);
 
 signals:
diff --git a/src/plugins/qmakeprojectmanager/qmakemakestep.cpp b/src/plugins/qmakeprojectmanager/qmakemakestep.cpp
index ea883569b0c..274e9632ea8 100644
--- a/src/plugins/qmakeprojectmanager/qmakemakestep.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakemakestep.cpp
@@ -33,7 +33,6 @@
 #include "qmakesettings.h"
 #include "qmakestep.h"
 
-#include <coreplugin/variablechooser.h>
 #include <projectexplorer/target.h>
 #include <projectexplorer/toolchain.h>
 #include <projectexplorer/buildsteplist.h>
@@ -43,7 +42,9 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/kitinformation.h>
 #include <projectexplorer/xcodebuildparser.h>
+
 #include <utils/qtcprocess.h>
+#include <utils/variablechooser.h>
 
 #include <QDir>
 #include <QFileInfo>
diff --git a/src/plugins/qmakeprojectmanager/qmakestep.cpp b/src/plugins/qmakeprojectmanager/qmakestep.cpp
index 28201926987..0662f48c614 100644
--- a/src/plugins/qmakeprojectmanager/qmakestep.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakestep.cpp
@@ -46,14 +46,15 @@
 
 #include <coreplugin/icore.h>
 #include <coreplugin/icontext.h>
-#include <coreplugin/variablechooser.h>
 #include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtversionmanager.h>
 #include <qtsupport/qtsupportconstants.h>
+
 #include <utils/algorithm.h>
 #include <utils/hostosinfo.h>
 #include <utils/qtcprocess.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <QComboBox>
 #include <QDir>
@@ -580,7 +581,8 @@ BuildStepConfigWidget *QMakeStep::createConfigWidget()
         if (QmakeBuildConfiguration *bc = qmakeBuildConfiguration())
             BuildManager::buildLists({bc->cleanSteps()});
     });
-    auto chooser = new Core::VariableChooser(qmakeAdditonalArgumentsLineEdit);
+
+    auto chooser = new VariableChooser(qmakeAdditonalArgumentsLineEdit);
     chooser->addMacroExpanderProvider([this] { return macroExpander(); });
     chooser->addSupportedWidget(qmakeAdditonalArgumentsLineEdit);
 
diff --git a/src/plugins/qmakeprojectmanager/qmakestep.h b/src/plugins/qmakeprojectmanager/qmakestep.h
index 647d876a106..711cde4309b 100644
--- a/src/plugins/qmakeprojectmanager/qmakestep.h
+++ b/src/plugins/qmakeprojectmanager/qmakestep.h
@@ -28,8 +28,8 @@
 #include "qmakeprojectmanager_global.h"
 
 #include <projectexplorer/abstractprocessstep.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 
+#include <utils/aspects.h>
 #include <utils/fileutils.h>
 
 #include <memory>
@@ -83,9 +83,9 @@ public:
     QString targetTriple;
     TargetArchConfig archConfig = NoArch;
     OsType osType = NoOsType;
-    ProjectExplorer::TriState separateDebugInfo;
-    ProjectExplorer::TriState linkQmlDebuggingQQ2;
-    ProjectExplorer::TriState useQtQuickCompiler;
+    Utils::TriState separateDebugInfo;
+    Utils::TriState linkQmlDebuggingQQ2;
+    Utils::TriState useQtQuickCompiler;
 };
 
 
@@ -103,9 +103,9 @@ inline bool operator !=(const QMakeStepConfig &a, const QMakeStepConfig &b) {
 inline QDebug operator<<(QDebug dbg, const QMakeStepConfig &c)
 {
    dbg << c.archConfig << c.osType
-       << (c.linkQmlDebuggingQQ2 == ProjectExplorer::TriState::Enabled)
-       << (c.useQtQuickCompiler == ProjectExplorer::TriState::Enabled)
-       << (c.separateDebugInfo == ProjectExplorer::TriState::Enabled);
+       << (c.linkQmlDebuggingQQ2 == Utils::TriState::Enabled)
+       << (c.useQtQuickCompiler == Utils::TriState::Enabled)
+       << (c.separateDebugInfo == Utils::TriState::Enabled);
    return dbg;
 }
 
diff --git a/src/plugins/qmlprojectmanager/qmlmainfileaspect.cpp b/src/plugins/qmlprojectmanager/qmlmainfileaspect.cpp
index 7e2efa3844c..cfb11e05778 100644
--- a/src/plugins/qmlprojectmanager/qmlmainfileaspect.cpp
+++ b/src/plugins/qmlprojectmanager/qmlmainfileaspect.cpp
@@ -41,6 +41,8 @@
 
 #include <QComboBox>
 
+#include <utils/layoutbuilder.h>
+
 using namespace Core;
 using namespace ProjectExplorer;
 
@@ -69,7 +71,7 @@ QmlMainFileAspect::~QmlMainFileAspect()
     delete m_fileListCombo;
 }
 
-void QmlMainFileAspect::addToLayout(LayoutBuilder &builder)
+void QmlMainFileAspect::addToLayout(Utils::LayoutBuilder &builder)
 {
     QTC_ASSERT(!m_fileListCombo, delete m_fileListCombo);
     m_fileListCombo = new QComboBox;
diff --git a/src/plugins/qmlprojectmanager/qmlmainfileaspect.h b/src/plugins/qmlprojectmanager/qmlmainfileaspect.h
index 61a7b337b7f..7eacb128b22 100644
--- a/src/plugins/qmlprojectmanager/qmlmainfileaspect.h
+++ b/src/plugins/qmlprojectmanager/qmlmainfileaspect.h
@@ -44,7 +44,7 @@ namespace QmlProjectManager {
 class QmlProject;
 class QmlBuildSystem;
 
-class QMLPROJECTMANAGER_EXPORT QmlMainFileAspect : public ProjectExplorer::ProjectConfigurationAspect
+class QMLPROJECTMANAGER_EXPORT QmlMainFileAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 public:
@@ -57,7 +57,7 @@ public:
         FileInSettings
     };
 
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) final;
+    void addToLayout(Utils::LayoutBuilder &builder) final;
     void toMap(QVariantMap &map) const final;
     void fromMap(const QVariantMap &map) final;
 
diff --git a/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.h b/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.h
index 47cbda9bf9c..5eae6c78948 100644
--- a/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.h
+++ b/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.h
@@ -33,7 +33,7 @@
 
 namespace QmlProjectManager {
 
-class QMLPROJECTMANAGER_EXPORT QmlMultiLanguageAspect : public ProjectExplorer::BoolAspect
+class QMLPROJECTMANAGER_EXPORT QmlMultiLanguageAspect : public Utils::BoolAspect
 {
     Q_OBJECT
 public:
diff --git a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
index a5a01d058ff..f5d144875e1 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
+++ b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
@@ -40,11 +40,11 @@
 #include <projectexplorer/runconfigurationaspects.h>
 #include <projectexplorer/target.h>
 #include <projectexplorer/environmentaspect.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 
 #include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtsupportconstants.h>
 
+#include <utils/aspects.h>
 #include <utils/environment.h>
 #include <utils/fileutils.h>
 #include <utils/mimetypes/mimedatabase.h>
diff --git a/src/plugins/qnx/qnxrunconfiguration.h b/src/plugins/qnx/qnxrunconfiguration.h
index f49892f3277..e56d00fe343 100644
--- a/src/plugins/qnx/qnxrunconfiguration.h
+++ b/src/plugins/qnx/qnxrunconfiguration.h
@@ -31,7 +31,7 @@
 namespace Qnx {
 namespace Internal {
 
-class QtLibPathAspect : public ProjectExplorer::StringAspect
+class QtLibPathAspect : public Utils::StringAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/qtsupport/qtbuildaspects.cpp b/src/plugins/qtsupport/qtbuildaspects.cpp
index 06855e65a3e..1874156f62c 100644
--- a/src/plugins/qtsupport/qtbuildaspects.cpp
+++ b/src/plugins/qtsupport/qtbuildaspects.cpp
@@ -30,12 +30,15 @@
 #include <projectexplorer/buildpropertiessettings.h>
 #include <projectexplorer/projectexplorer.h>
 #include <projectexplorer/kitmanager.h>
+
 #include <utils/infolabel.h>
+#include <utils/layoutbuilder.h>
 
 #include <QCheckBox>
 #include <QLayout>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace QtSupport {
 
@@ -109,7 +112,7 @@ void QtQuickCompilerAspect::addToLayout(LayoutBuilder &builder)
     changeHandler();
 }
 
-void QtQuickCompilerAspect::acquaintSiblings(const ProjectConfigurationAspects &siblings)
+void QtQuickCompilerAspect::acquaintSiblings(const BaseAspects &siblings)
 {
     m_qmlDebuggingAspect = siblings.aspect<QmlDebuggingAspect>();
 }
diff --git a/src/plugins/qtsupport/qtbuildaspects.h b/src/plugins/qtsupport/qtbuildaspects.h
index 8dd45f8c016..c9f8a12c1d6 100644
--- a/src/plugins/qtsupport/qtbuildaspects.h
+++ b/src/plugins/qtsupport/qtbuildaspects.h
@@ -27,24 +27,26 @@
 
 #include "qtsupport_global.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <utils/aspects.h>
+
+namespace ProjectExplorer { class Kit; }
 
 namespace QtSupport {
 
-class QTSUPPORT_EXPORT QmlDebuggingAspect : public ProjectExplorer::TriStateAspect
+class QTSUPPORT_EXPORT QmlDebuggingAspect : public Utils::TriStateAspect
 {
     Q_OBJECT
 public:
     QmlDebuggingAspect();
 
     void setKit(const ProjectExplorer::Kit *kit) { m_kit = kit; }
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
 private:
     const ProjectExplorer::Kit *m_kit = nullptr;
 };
 
-class QTSUPPORT_EXPORT QtQuickCompilerAspect : public ProjectExplorer::TriStateAspect
+class QTSUPPORT_EXPORT QtQuickCompilerAspect : public Utils::TriStateAspect
 {
     Q_OBJECT
 public:
@@ -53,8 +55,8 @@ public:
     void setKit(const ProjectExplorer::Kit *kit) { m_kit = kit; }
 
 private:
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) override;
-    void acquaintSiblings(const ProjectExplorer::ProjectConfigurationAspects &siblings) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
+    void acquaintSiblings(const Utils::BaseAspects &siblings) override;
 
     const ProjectExplorer::Kit *m_kit = nullptr;
     const QmlDebuggingAspect *m_qmlDebuggingAspect = nullptr;
diff --git a/src/plugins/qtsupport/qtoptionspage.cpp b/src/plugins/qtsupport/qtoptionspage.cpp
index 9ce6769c37a..cd0001e946a 100644
--- a/src/plugins/qtsupport/qtoptionspage.cpp
+++ b/src/plugins/qtsupport/qtoptionspage.cpp
@@ -39,7 +39,6 @@
 #include <coreplugin/dialogs/restartdialog.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/progressmanager/progressmanager.h>
-#include <coreplugin/variablechooser.h>
 
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/projectexplorericons.h>
@@ -55,6 +54,7 @@
 #include <utils/runextensions.h>
 #include <utils/treemodel.h>
 #include <utils/utilsicons.h>
+#include <utils/variablechooser.h>
 
 #include <QDesktopServices>
 #include <QDir>
@@ -326,7 +326,7 @@ QtOptionsPageWidget::QtOptionsPageWidget()
     connect(ProjectExplorer::ToolChainManager::instance(), &ToolChainManager::toolChainsChanged,
             this, &QtOptionsPageWidget::toolChainsUpdated);
 
-    auto chooser = new Core::VariableChooser(this);
+    auto chooser = new VariableChooser(this);
     chooser->addSupportedWidget(m_versionUi.nameEdit, "Qt:Name");
     chooser->addMacroExpanderProvider([this] {
         BaseQtVersion *version = currentVersion();
diff --git a/src/plugins/remotelinux/genericdirectuploadstep.cpp b/src/plugins/remotelinux/genericdirectuploadstep.cpp
index c649ba809c8..0b47e94624a 100644
--- a/src/plugins/remotelinux/genericdirectuploadstep.cpp
+++ b/src/plugins/remotelinux/genericdirectuploadstep.cpp
@@ -33,6 +33,7 @@
 #include <projectexplorer/runconfigurationaspects.h>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace RemoteLinux {
 
diff --git a/src/plugins/remotelinux/makeinstallstep.h b/src/plugins/remotelinux/makeinstallstep.h
index f50c1d784df..e0685b8dca8 100644
--- a/src/plugins/remotelinux/makeinstallstep.h
+++ b/src/plugins/remotelinux/makeinstallstep.h
@@ -30,8 +30,10 @@
 #include <projectexplorer/deploymentdata.h>
 #include <projectexplorer/makestep.h>
 
-namespace ProjectExplorer { class StringAspect; }
-namespace Utils { class FilePath; }
+namespace Utils {
+class FilePath;
+class StringAspect;
+} // Utils
 
 namespace RemoteLinux {
 
@@ -60,7 +62,7 @@ private:
     void updateFullCommandLine();
     void updateFromCustomCommandLineAspect();
 
-    ProjectExplorer::StringAspect *customCommandLineAspect() const;
+    Utils::StringAspect *customCommandLineAspect() const;
 
     ProjectExplorer::DeploymentData m_deploymentData;
     bool m_noInstallTarget = false;
diff --git a/src/plugins/remotelinux/remotelinuxcheckforfreediskspacestep.cpp b/src/plugins/remotelinux/remotelinuxcheckforfreediskspacestep.cpp
index 1fe8ba0da3a..2dabebbbbdb 100644
--- a/src/plugins/remotelinux/remotelinuxcheckforfreediskspacestep.cpp
+++ b/src/plugins/remotelinux/remotelinuxcheckforfreediskspacestep.cpp
@@ -27,11 +27,12 @@
 
 #include "remotelinuxcheckforfreediskspaceservice.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
+#include <utils/aspects.h>
 
 #include <limits>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace RemoteLinux {
 
diff --git a/src/plugins/remotelinux/remotelinuxcustomcommanddeploymentstep.cpp b/src/plugins/remotelinux/remotelinuxcustomcommanddeploymentstep.cpp
index 9accd3d4bc5..dce17f58f54 100644
--- a/src/plugins/remotelinux/remotelinuxcustomcommanddeploymentstep.cpp
+++ b/src/plugins/remotelinux/remotelinuxcustomcommanddeploymentstep.cpp
@@ -31,6 +31,7 @@
 #include <projectexplorer/runconfigurationaspects.h>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace RemoteLinux {
 
diff --git a/src/plugins/remotelinux/remotelinuxx11forwardingaspect.h b/src/plugins/remotelinux/remotelinuxx11forwardingaspect.h
index 597569ea636..b518782fbc8 100644
--- a/src/plugins/remotelinux/remotelinuxx11forwardingaspect.h
+++ b/src/plugins/remotelinux/remotelinuxx11forwardingaspect.h
@@ -27,15 +27,13 @@
 
 #include "remotelinux_export.h"
 
-#include <projectexplorer/projectconfigurationaspects.h>
-
-#include <QPointer>
+#include <utils/aspects.h>
 
 namespace Utils { class MacroExpander; }
 
 namespace RemoteLinux {
 
-class REMOTELINUX_EXPORT X11ForwardingAspect : public ProjectExplorer::StringAspect
+class REMOTELINUX_EXPORT X11ForwardingAspect : public Utils::StringAspect
 {
     Q_OBJECT
 
diff --git a/src/plugins/remotelinux/tarpackagecreationstep.cpp b/src/plugins/remotelinux/tarpackagecreationstep.cpp
index 5ffb2e461b4..deecaa1360a 100644
--- a/src/plugins/remotelinux/tarpackagecreationstep.cpp
+++ b/src/plugins/remotelinux/tarpackagecreationstep.cpp
@@ -43,6 +43,7 @@
 #include <cstring>
 
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace RemoteLinux {
 namespace {
diff --git a/src/plugins/remotelinux/tarpackagecreationstep.h b/src/plugins/remotelinux/tarpackagecreationstep.h
index 7d61d270928..33a7b4358e6 100644
--- a/src/plugins/remotelinux/tarpackagecreationstep.h
+++ b/src/plugins/remotelinux/tarpackagecreationstep.h
@@ -30,7 +30,8 @@
 #include "remotelinux_export.h"
 
 #include <projectexplorer/deployablefile.h>
-#include <projectexplorer/projectconfigurationaspects.h>
+
+#include <utils/aspects.h>
 
 QT_BEGIN_NAMESPACE
 class QFile;
@@ -77,8 +78,8 @@ private:
 
     DeploymentTimeInfo m_deployTimes;
 
-    ProjectExplorer::BoolAspect *m_incrementalDeploymentAspect = nullptr;
-    ProjectExplorer::BoolAspect *m_ignoreMissingFilesAspect = nullptr;
+    Utils::BoolAspect *m_incrementalDeploymentAspect = nullptr;
+    Utils::BoolAspect *m_ignoreMissingFilesAspect = nullptr;
     bool m_packagingNeeded = false;
     QList<ProjectExplorer::DeployableFile> m_files;
 };
diff --git a/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp b/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
index 10c6c06d45c..a12f95c10c9 100644
--- a/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
+++ b/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
@@ -29,8 +29,11 @@
 #include <projectexplorer/runcontrol.h>
 #include <projectexplorer/target.h>
 
+#include <utils/layoutbuilder.h>
+
 #include <QComboBox>
-#include <QFormLayout>
+
+using namespace Utils;
 
 namespace WebAssembly {
 namespace Internal {
@@ -77,7 +80,7 @@ WebBrowserSelectionAspect::WebBrowserSelectionAspect(ProjectExplorer::Target *ta
     setSettingsKey("RunConfiguration.WebBrowser");
 }
 
-void WebBrowserSelectionAspect::addToLayout(ProjectExplorer::LayoutBuilder &builder)
+void WebBrowserSelectionAspect::addToLayout(LayoutBuilder &builder)
 {
     QTC_CHECK(!m_webBrowserComboBox);
     m_webBrowserComboBox = new QComboBox;
diff --git a/src/plugins/webassembly/webassemblyrunconfigurationaspects.h b/src/plugins/webassembly/webassemblyrunconfigurationaspects.h
index 1f640f35a37..00cd2ac877d 100644
--- a/src/plugins/webassembly/webassemblyrunconfigurationaspects.h
+++ b/src/plugins/webassembly/webassemblyrunconfigurationaspects.h
@@ -32,14 +32,14 @@ QT_FORWARD_DECLARE_CLASS(QComboBox)
 namespace WebAssembly {
 namespace Internal {
 
-class WebBrowserSelectionAspect : public ProjectExplorer::ProjectConfigurationAspect
+class WebBrowserSelectionAspect : public Utils::BaseAspect
 {
     Q_OBJECT
 
 public:
     WebBrowserSelectionAspect(ProjectExplorer::Target *target);
 
-    void addToLayout(ProjectExplorer::LayoutBuilder &builder) override;
+    void addToLayout(Utils::LayoutBuilder &builder) override;
 
     void fromMap(const QVariantMap &map) override;
     void toMap(QVariantMap &map) const override;
diff --git a/src/plugins/winrt/winrtpackagedeploymentstep.cpp b/src/plugins/winrt/winrtpackagedeploymentstep.cpp
index c77d19911a5..3cfd60f86b9 100644
--- a/src/plugins/winrt/winrtpackagedeploymentstep.cpp
+++ b/src/plugins/winrt/winrtpackagedeploymentstep.cpp
@@ -33,7 +33,6 @@
 #include <projectexplorer/deployablefile.h>
 #include <projectexplorer/deploymentdata.h>
 #include <projectexplorer/processparameters.h>
-#include <projectexplorer/projectconfigurationaspects.h>
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/runconfiguration.h>
@@ -41,9 +40,11 @@
 
 #include <qtsupport/qtkitinformation.h>
 
+#include <utils/aspects.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 #include <utils/fancylineedit.h>
+#include <utils/layoutbuilder.h>
 
 #include <QLabel>
 #include <QLayout>
@@ -59,7 +60,7 @@ namespace Internal {
 const char ARGUMENTS_KEY[] = "WinRt.BuildStep.Deploy.Arguments";
 const char DEFAULTARGUMENTS_KEY[] = "WinRt.BuildStep.Deploy.DefaultArguments";
 
-class WinRtArgumentsAspect final : public ProjectConfigurationAspect
+class WinRtArgumentsAspect final : public BaseAspect
 {
     Q_DECLARE_TR_FUNCTIONS(WinRt::Internal::WinRtArgumentsAspect)
 
diff --git a/src/plugins/winrt/winrtrunconfiguration.h b/src/plugins/winrt/winrtrunconfiguration.h
index 15282a62742..8e9cf4f0c1e 100644
--- a/src/plugins/winrt/winrtrunconfiguration.h
+++ b/src/plugins/winrt/winrtrunconfiguration.h
@@ -30,7 +30,7 @@
 namespace WinRt {
 namespace Internal {
 
-class UninstallAfterStopAspect : public ProjectExplorer::BoolAspect
+class UninstallAfterStopAspect : public Utils::BoolAspect
 {
     Q_OBJECT
 
@@ -38,7 +38,7 @@ public:
     UninstallAfterStopAspect();
 };
 
-class LoopbackExemptClientAspect : public ProjectExplorer::BoolAspect
+class LoopbackExemptClientAspect : public Utils::BoolAspect
 {
     Q_OBJECT
 
@@ -46,7 +46,7 @@ public:
     LoopbackExemptClientAspect();
 };
 
-class LoopbackExemptServerAspect : public ProjectExplorer::BoolAspect
+class LoopbackExemptServerAspect : public Utils::BoolAspect
 {
     Q_OBJECT