review: fix check-prefixes to ensure errored test fails

Author: inbelic

clang/test/AST/HLSL/RootSignatures-AST.hlsl

@@ -1,11 +1,11 @@
 // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-library -ast-dump \
-// RUN:  -disable-llvm-passes -o - %s | FileCheck %s
+// RUN:  -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-V1_1
 // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-library -ast-dump \
 // RUN:  -fdx-rootsignature-version=rootsig_1_0 \
-// RUN:  -disable-llvm-passes -o - %s | FileCheck %s --check-prefix=CHECK-V1_0
+// RUN:  -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-V1_0
 // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-library -ast-dump \
 // RUN:  -fdx-rootsignature-version=rootsig_1_1 \
-// RUN:  -disable-llvm-passes -o - %s | FileCheck %s --check-prefix=CHECK-V1_1
+// RUN:  -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-V1_1
 
 // This test ensures that the sample root signature is parsed without error and
 // the Attr AST Node is created succesfully. If an invalid root signature was