Add __has_feature(cxx_range_for) check for C++11 range-based for loop.

llvm-svn: 129573
diff --git a/clang/test/Lexer/has_feature_cxx0x.cpp b/clang/test/Lexer/has_feature_cxx0x.cpp
index 27ea106..57949e3 100644
--- a/clang/test/Lexer/has_feature_cxx0x.cpp
+++ b/clang/test/Lexer/has_feature_cxx0x.cpp
@@ -109,6 +109,17 @@
 // CHECK-0X: has_inline_namespaces
 // CHECK-NO-0X: no_inline_namespaces
 
+
+#if __has_feature(cxx_range_for)
+int has_range_for();
+#else
+int no_range_for();
+#endif
+
+// CHECK-0X: has_range_for
+// CHECK-NO-0X: no_range_for
+
+
 #if __has_feature(cxx_reference_qualified_functions)
 int has_reference_qualified_functions();
 #else