[HLSL] implement `SV_GroupID` semantic

[llvm-beanz]

Implement the HLSL SV_GroupID semantic for entry parameter declarations:

https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/sv-groupid

AC:

• Implement through to code generation
• Can print the AST to verify the generation

[lizhengxing]

I'll work on this task.

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: Chris B (llvm-beanz)

Implement the HLSL `SV_GroupID` semantic for entry parameter declarations:

https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/sv-groupid

AC:

• Implement through to code generation
• Can print the AST to verify the generation

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Chris B (llvm-beanz)

Implement the HLSL `SV_GroupID` semantic for entry parameter declarations:

https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/sv-groupid

AC:

• Implement through to code generation
• Can print the AST to verify the generation