[llvm] [DirectX] Adding support for Root Descriptors in obj2yaml/yaml2obj (PR #137259)

[Damyan Pepper via llvm-commits]

================
@@ -121,16 +121,19 @@ namespace DirectX {
 struct RootParameterView {
   const dxbc::RootParameterHeader &Header;
   StringRef ParamData;
-  RootParameterView(const dxbc::RootParameterHeader &H, StringRef P)
+  RootParameterView(uint32_t V, const dxbc::RootParameterHeader &H, StringRef P)
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damyanp wrote:

It looks like other constructors have `V` stand for "View".

But regardless, it is literally unused:
```c++
  RootParameterView(uint32_t V, const dxbc::RootParameterHeader &H, StringRef P)
      : Header(H), ParamData(P) {}
```

RootDescriptorView does have a Version passed to it's read method.  But this V passed to the RootParameterView constructor is not used.


https://github.com/llvm/llvm-project/pull/137259