Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166280 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/prefetch-enum.cpp b/test/SemaCXX/prefetch-enum.cpp
index 3c77dae..5457bbe 100644
--- a/test/SemaCXX/prefetch-enum.cpp
+++ b/test/SemaCXX/prefetch-enum.cpp
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -fsyntax-only %s -verify
+// expected-no-diagnostics
 // PR5679
 
 enum X { A = 3 };