Break some include cycles in qglobal.h [1/3]

Remove qglobal.h include from qcompilerdetection.h, qsystemdetection.h
and modulecppexports.h.in

Testing locally, the code builds on Linux with precompiled headers
disabled/enabled (qt_pch.h includes qglobal.h, so building with PCH
enabled isn't useful for testing this) and with/without bootstrap.

qrunnable.*: missing includes detected by compiling with
-DFEATURE_headersclean=ON.

Task-number: QTBUG-106722
Change-Id: I70864dfbf117ffd7fe492eb715a413eb6f209990
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

cmake/modulecppexports.h.in

@@ -1,13 +1,13 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-// This file is autogenerated. Changes will be overwritten.
-
-#include <QtCore/qglobal.h>
-
 #ifndef @header_base_name_upper@_H
 #define @header_base_name_upper@_H
 
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtconfigmacros.h> // Q_@module_define_infix@_EXPORT
+#include <QtCore/qtdeprecationmarkers.h> // QT_IF_DEPRECATED_SINCE
+
 #if defined(QT_SHARED) || !defined(QT_STATIC)
 #  if defined(QT_BUILD_@module_define_infix@_LIB)
 #    define Q_@module_define_infix@_EXPORT Q_DECL_EXPORT

src/corelib/global/qcompilerdetection.h

@@ -2,9 +2,7 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QGLOBAL_H
-# include <QtCore/qglobal.h>
-#endif
+#include <QtCore/qsystemdetection.h>
 
 #if 0
 #pragma qt_class(QtCompilerDetection)

src/corelib/global/qexceptionhandling.h

@@ -6,6 +6,7 @@
 
 #include <QtCore/qtconfigmacros.h>
 #include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtcoreexports.h>
 
 #if 0
 #pragma qt_class(QtExceptionHandling)

src/corelib/global/qsystemdetection.h

@@ -2,10 +2,6 @@
 // Copyright (C) 2019 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QGLOBAL_H
-# include <QtCore/qglobal.h>
-#endif
-
 #if 0
 #pragma qt_class(QtSystemDetection)
 #pragma qt_sync_skip_header_check

src/corelib/thread/qrunnable.cpp

@@ -3,6 +3,8 @@
 
 #include "qrunnable.h"
 
+#include <QtCore/qlogging.h>
+
 QT_BEGIN_NAMESPACE
 
 QRunnable::~QRunnable()

src/corelib/thread/qrunnable.h

@@ -6,6 +6,8 @@
 
 #include <QtCore/qcompilerdetection.h>
 #include <QtCore/qfunctionaltools_impl.h>
+#include <QtCore/qtclasshelpermacros.h>
+#include <QtCore/qtcoreexports.h>
 
 #include <functional>
 #include <type_traits>