C++11: Add alignof() expression.

Change-Id: Id3fb30b9a16ea724bab0d5b05e8cbddb0064e6eb
Reviewed-by: hjk <qthjk@ovi.com>

src/libs/3rdparty/cplusplus/ASTPatternBuilder.h

@@ -747,6 +747,13 @@ public:
         return __ast;
     }
 
+    AlignofExpressionAST *AlignofExpression(TypeIdAST *typeId = 0)
+    {
+        AlignofExpressionAST *__ast = new (&pool) AlignofExpressionAST;
+        __ast->typeId = typeId;
+        return __ast;
+    }
+
     PointerLiteralAST *PointerLiteral()
     {
         PointerLiteralAST *__ast = new (&pool) PointerLiteralAST;