C++: refactoring: extract finding anonymous as nested type

Change-Id: I73d50d7b51e6a4e9d2b20df487f871793a6a6889
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/libs/cplusplus/LookupContext.h

@@ -105,6 +105,8 @@ private:
     ClassOrNamespace *findOrCreateType(const Name *name, ClassOrNamespace *origin = 0,
                                        Class *clazz = 0);
 
+    ClassOrNamespace *findOrCreateNestedAnonymousType(const AnonymousNameId *anonymousNameId);
+
     void addTodo(Symbol *symbol);
     void addSymbol(Symbol *symbol);
     void addUnscopedEnum(Enum *e);