Reduce usage of app_version header

Most information is available via Q(Core|Gui)Application.
Add an AppInfo structure for the things that are not.

This avoids that the information ends up duplicated and
hardcoded in the plugins, which is not needed or desired.

Change-Id: I4d565e75c42a7b8facafa90c27096ea49359215d
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/debugger/procinterrupt.cpp

@@ -4,10 +4,8 @@
 #include "procinterrupt.h"
 #include "debuggerconstants.h"
 
-#include <app/app_version.h>
-
-#include <QCoreApplication>
 #include <QDir>
+#include <QGuiApplication>
 #include <QProcess> // makes kill visible on Windows.
 
 using namespace Debugger::Internal;
@@ -128,7 +126,7 @@ GDB 32bit | Api             | Api             | NA              | Win32
                                     "on your own, checkout "
                                     "https://code.qt.io/cgit/qt-creator/binary-artifacts.git/.")
                                     .arg(QDir::toNativeSeparators(executable),
-                                         QString(Core::Constants::IDE_DISPLAY_NAME));
+                                         QGuiApplication::applicationDisplayName());
                 break;
             }
             switch (QProcess::execute(executable, QStringList(QString::number(pID)))) {