[clang] [llvm] [DirectX] add Function name to DiagnosticInfoUnsupported Msg in DXILOpLowering (PR #136234)

[Farzon Lotfi via llvm-commits]

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@@ -0,0 +1,7 @@
+// RUN: %if clang-dxc %{not %clang_dxc -T lib_6_3 %s 2>&1 | FileCheck %s %}
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farzonl wrote:

I tried REQUIRES: directx-registered-target and it just makes it so the test gets skipped as unsupported even on my local machine with the directx target built

https://github.com/llvm/llvm-project/pull/136234