The nodebug attribute has a C++11-style spelling supported by GCC as well. This modifies it so we support that spelling as well.

llvm-svn: 220297
diff --git a/clang/test/SemaCXX/attr-nodebug.cpp b/clang/test/SemaCXX/attr-nodebug.cpp
index b441da2..fd35722 100644
--- a/clang/test/SemaCXX/attr-nodebug.cpp
+++ b/clang/test/SemaCXX/attr-nodebug.cpp
@@ -1,7 +1,9 @@
-// RUN: %clang_cc1 %s -verify -fsyntax-only
+// RUN: %clang_cc1 %s -std=c++11 -verify -fsyntax-only
 // Note: most of the 'nodebug' tests are in attr-nodebug.c.
 
 // expected-no-diagnostics
 class c {
   void t3() __attribute__((nodebug));
 };
+
+[[gnu::nodebug]] void f() {}