remove fixed xfails, mark clang-vulkan unsupported

Author: kmpeng

test/Feature/HLSLLib/mad.32.test

@@ -207,9 +207,8 @@ DescriptorSets:
         Binding: 11
 #--- end
 
-# TODO: https://github.com/llvm/llvm-project/issues/152220
-# XFAIL: Clang-DirectX
-# XFAIL: Clang-Metal
+# https://github.com/llvm/llvm-project/issues/140095
+# UNSUPPORTED: Clang-Vulkan
 
 # RUN: split-file %s %t
 # RUN: %dxc_target  -T cs_6_5 -Fo %t.o %t/source.hlsl

test/Feature/HLSLLib/mad.int16.test

@@ -141,9 +141,8 @@ DescriptorSets:
         Binding: 7
 #--- end
 
-# TODO: https://github.com/llvm/llvm-project/issues/152220
-# XFAIL: Clang-DirectX
-# XFAIL: Clang-Metal
+# https://github.com/llvm/llvm-project/issues/140095
+# UNSUPPORTED: Clang-Vulkan
 
 # REQUIRES: Int16
 # RUN: split-file %s %t

test/Feature/HLSLLib/mad.int64.test

@@ -141,9 +141,8 @@ DescriptorSets:
         Binding: 7
 #--- end
 
-# TODO: https://github.com/llvm/llvm-project/issues/152220
-# XFAIL: Clang-DirectX
-# XFAIL: Clang-Metal
+# https://github.com/llvm/llvm-project/issues/140095
+# UNSUPPORTED: Clang-Vulkan
 
 # REQUIRES: Int64
 # RUN: split-file %s %t