C++11: Allow brace initializers in return statements.

Like return {1, 2};

Change-Id: I7442da1866b0106bc075783653c95c16ebedb51a
Reviewed-by: hjk <qthjk@ovi.com>

tests/auto/cplusplus/cxx11/data/braceInitializers.1.cpp

@@ -12,3 +12,7 @@ void main() {
     Type var2{{1, 2, 3}, 4};
     var3 += {1, 2};
 }
+
+T foo() {
+    return {1, 2, {"foo", 7}};
+}