[llvm] [DirectX][NFC] Rename ShaderFlag to Shader_FEATURE_INFO. (PR #82700)

[Chris B via llvm-commits]

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@@ -56,7 +56,7 @@ struct DXILProgram {
   std::optional<std::vector<llvm::yaml::Hex8>> DXIL;
 };
 
-#define SHADER_FLAG(Num, Val, Str) bool Val = false;
+#define SHADER_FEATURE_FLAG(Num, Val, Str) bool Val = false;
 struct ShaderFlags {
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llvm-beanz wrote:

Should this also be `FeatureFlags`?

https://github.com/llvm/llvm-project/pull/82700