C++: Introduce PointerDeclarationFormatter

For a given AST, CppRefactoringFile and Overview this will create a
ChangeSet for rewriting the pointer or reference declaration according
to the Overview.

Task-number: QTCREATORBUG-6169

Change-Id: If6f824c1ea5e9f53a11a58ec8b6d696d01f0723e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/libs/3rdparty/cplusplus/Bind.cpp

@@ -181,6 +181,13 @@ void Bind::operator()(DeclarationAST *ast, Scope *scope)
     (void) switchScope(previousScope);
 }
 
+void Bind::operator()(StatementAST *ast, Scope *scope)
+{
+    Scope *previousScope = switchScope(scope);
+    statement(ast);
+    (void) switchScope(previousScope);
+}
+
 FullySpecifiedType Bind::operator()(ExpressionAST *ast, Scope *scope)
 {
     Scope *previousScope = switchScope(scope);