ProjectExplorer: Reduce scope of projectexploererconstants include

plus a bit of cosmetics.

Change-Id: I744b28ebf4285bd61b948988a0192632f5b360a8
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/android/androidplugin.cpp

@@ -44,6 +44,7 @@
 #include <projectexplorer/kitaspects.h>
 #include <projectexplorer/kitmanager.h>
 #include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/projectmanager.h>
 #include <projectexplorer/target.h>
 

src/plugins/android/androidtoolchain.cpp

@@ -9,6 +9,7 @@
 #include <projectexplorer/kitmanager.h>
 #include <projectexplorer/toolchainmanager.h>
 #include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projectexplorerconstants.h>
 
 #include <utils/environment.h>
 

src/plugins/projectexplorer/gcctoolchain.cpp

@@ -8,6 +8,7 @@
 #include "devicesupport/idevice.h"
 #include "gccparser.h"
 #include "linuxiccparser.h"
+#include "projectexplorerconstants.h"
 #include "projectexplorertr.h"
 #include "projectmacro.h"
 #include "toolchainconfigwidget.h"

src/plugins/projectexplorer/gcctoolchain.h

@@ -5,7 +5,6 @@
 
 #include "projectexplorer_export.h"
 
-#include "projectexplorerconstants.h"
 #include "toolchain.h"
 #include "abi.h"
 #include "headerpath.h"
@@ -30,7 +29,6 @@ const QStringList gccPredefinedMacrosOptions(Utils::Id languageId);
 // GccToolChain
 // --------------------------------------------------------------------------
 
-
 class PROJECTEXPLORER_EXPORT GccToolChain : public ToolChain
 {
 public:

src/plugins/projectexplorer/projectexplorer.cpp

@@ -56,6 +56,7 @@
 #include "processstep.h"
 #include "project.h"
 #include "projectcommentssettings.h"
+#include "projectexplorerconstants.h"
 #include "projectexplorericons.h"
 #include "projectexplorersettings.h"
 #include "projectexplorertr.h"

src/plugins/webassembly/webassemblysettings.cpp

@@ -12,6 +12,8 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/dialogs/ioptionspage.h>
 
+#include <projectexplorer/projectexplorerconstants.h>
+
 #include <utils/aspects.h>
 #include <utils/environment.h>
 #include <utils/infolabel.h>
@@ -19,7 +21,6 @@
 #include <utils/pathchooser.h>
 #include <utils/utilsicons.h>
 
-#include <QGroupBox>
 #include <QTextBrowser>
 #include <QTimer>