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>

src/plugins/clangcodemodel/clanghighlightingresultreporter.cpp

@@ -50,6 +50,7 @@ TextEditor::TextStyle toTextStyle(ClangBackEnd::HighlightingType type)
     case HighlightingType::LocalVariable:
         return TextEditor::C_LOCAL;
     case HighlightingType::Field:
+    case HighlightingType::QtProperty:
         return TextEditor::C_FIELD;
     case HighlightingType::GlobalVariable:
         return TextEditor::C_GLOBAL;