Preprocessor: fix expanding macro arguments.

Expanding macro arguments can add or remove argument for a nested macro,
so the actual parameters list was not correct.

Also, remove unused arguments reference list and reserve space for the
expected number of arguments.

Change-Id: I4cf369cbb3909927c6bf65750bd715fa6f070fad
Reviewed-by: Erik Verbruggen <erik.verbruggen@nokia.com>

src/libs/cplusplus/pp-macro-expander.h

@@ -98,6 +98,7 @@ public:
     const char *skip_argument_variadics(const QVector<QByteArray> &actuals,
                                          Macro *macro,
                                          const char *first, const char *last);
+    void pushActuals(QVector<QByteArray> & actuals, Macro *__macro, const QByteArray& expanded);
 
 public: // attributes
     int lines;