clean up test

Author: bob80905

tools/clang/test/HLSLFileCheck/infra/auto-dxilver.hlsl

@@ -5,14 +5,17 @@
 // This should implicitly require dxilver 1.8.
 
 // RUN: %dxc -T vs_6_8 -Vd %s | FileCheck %s
-// Even though this is using -Vd, the validator version is set by the available
-// validator.  If that isn't version 1.8 or above, we'll see an error.
+// Even though this is using -Vd, the validator version being checked is the internal
+// validator's version. If a pre-DXIL-1.8 DXC was used to run this test, we expect failure,
+// since the internal validator will be the same version as the older DXC.
 // The implicit dxilver logic should not skip the check when -Vd is used.
 // CHECK-NOT: error: validator version {{.*}} does not support target profile.
 
 // RUN: %dxc -T vs_6_0 -validator-version 1.8 %s | FileCheck %s
 // Even though target is 6.0, the explicit -validator-version should add an
-// implicit dxilver 1.8 requirement.
+// implicit dxilver 1.8 requirement. The requirement should pass for DXCs that
+// are newer than DXIL Version 1.8, since then, the internal validator's version will
+// be sufficiently new for this check.
 // CHECK-NOT: error: The module cannot be validated by the version of the validator currently attached.
 
 // This error would occur if run against wrong compiler.
@@ -21,8 +24,6 @@
 // Catch any other unexpected error cases.
 // CHECK-NOT: error
 
-// RUN: %dxc -T vs_6_8 %s | FileCheck %s
-// This should always be run, and always succeed.
 // CHECK: define void @main()
 
 void main() {}