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.

llvm-svn: 166280
diff --git a/clang/test/Sema/int-arith-convert.c b/clang/test/Sema/int-arith-convert.c
index c56ab3b..0f425bd 100644
--- a/clang/test/Sema/int-arith-convert.c
+++ b/clang/test/Sema/int-arith-convert.c
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple=i686-linux-gnu -fsyntax-only -verify %s
+// expected-no-diagnostics
 
 // Check types are the same through redeclaration
 unsigned long x;