Clang: Properly handle Q_PROPERTY in TokenInfo

Transform Q_PROPERTY into unique AST node.
Mark different parts with types and search for parent
in FullTokenInfos.

Change-Id: Iaa1ec0c73d34773edf5605d3682bd6a290d195de
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

share/qtcreator/cplusplus/wrappedQtHeaders/QtCore/qobjectdefs.h

@@ -23,11 +23,17 @@
 **
 ****************************************************************************/
 
+#ifndef WRAPPED_QOBJECT_DEFS_H
+#define WRAPPED_QOBJECT_DEFS_H
+
 // Include qobjectdefs.h from Qt ...
 #include_next <qobjectdefs.h>
 
+#include <utility>
+
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wmacro-redefined"
+#pragma clang diagnostic ignored "-Wgnu-string-literal-operator-template"
 
 // ...and redefine macros for tagging signals/slots
 #ifdef signals
@@ -54,4 +60,15 @@
 #  define Q_SLOT __attribute__((annotate("qt_slot")))
 #endif
 
+template <char... chars>
+using QPropertyMagicString = std::integer_sequence<char, chars...>;
+
+template <class T, T... chars>
+constexpr QPropertyMagicString<chars...> operator""_qpropstr() { return { }; }
+
+// Create unique AST node for the property.
+#define Q_PROPERTY(arg) void QPropertyMagicFunction(decltype(#arg ## _qpropstr));
+
 #pragma clang diagnostic pop
+
+#endif // WRAPPED_QOBJECT_DEFS_H