Update test.

This test intends to catch invalid use of ".byte 256" in output. Now, the assert in MC will be triggered in such cases.

llvm-svn: 121403

clang/test/CodeGenCXX/vtable-debug-info.cpp

@@ -1,6 +1,6 @@
-// RUN: %clang -S -fverbpse-asm -g %s -o -  | FileCheck %s
+// RUN: %clang -c -g %s -o /dev/null
 // Radar 8730409
-// CHECK-NOT:.byte	256
+
 class foo {
 public:
 #define x(a) virtual void v ## a (void)