[llvm] Add support for PSV EntryFunctionName (PR #84409)

[Xiang Li via llvm-commits]

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@@ -46,7 +46,7 @@ struct PSVSignatureElement {
 // RuntimeInfo.
 struct PSVRuntimeInfo {
   bool IsFinalized = false;
-  dxbc::PSV::v2::RuntimeInfo BaseData;
+  dxbc::PSV::v3::RuntimeInfo BaseData;
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python3kgae wrote:

Shall we add the [PSVStringTable](https://github.com/microsoft/DirectXShaderCompiler/blob/main/include/dxc/DxilContainer/DxilPipelineStateValidation.h#L484) too?
Since the EntryFunctionName in v3::RuntimeInfo is index to the StringTable.

https://github.com/llvm/llvm-project/pull/84409