Clang: Show all tokens of a getter as output argument

f(x.get()); -> x.get() should be shown as a output argument

Task-number: QTCREATORBUG-18591
Change-Id: I99f5637660bcd0a889338ebfa6737d79de226f87
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

tests/unit/unittest/data/highlightingmarks.cpp

@@ -565,3 +565,17 @@ void g(OtherOperator o, int var)
 {
     o(var);
 }
+
+void NonConstPointerArgument(int &argument);
+
+struct PointerGetterClass
+{
+    int &getter();
+};
+
+void f32()
+{
+    PointerGetterClass x;
+
+    NonConstPointerArgument(x.getter());
+}