llvm-project

66889bf3 - [HLSL][RootSignature] Implement serialization of `RootConstants` and `RootFlags` (#141130)

[HLSL][RootSignature] Implement serialization of `RootConstants` and `RootFlags` (#141130) - Implements serialization of the currently completely defined `RootElement`s, namely `RootConstants` and `RootFlags` - Adds unit testing for the serialization methods Resolves: https://github.com/llvm/llvm-project/issues/138190 and https://github.com/llvm/llvm-project/issues/138192