[clang] [llvm] [HLSL] Implement WaveActiveAnyTrue intrinsic (PR #115902)

[Farzon Lotfi via cfe-commits]

================
@@ -4744,6 +4744,12 @@ def HLSLAny : LangBuiltin<"HLSL_LANG"> {
   let Prototype = "bool(...)";
 }
 
+def HLSLWaveActiveAnyTrue : LangBuiltin<"HLSL_LANG"> {
+  let Spellings = ["__builtin_hlsl_wave_active_any_true"];
+  let Attributes = [NoThrow, Const];
+  let Prototype = "bool(bool)";
----------------
farzonl wrote:

A note: The reason we didn't have to do a SemaHLSL change for `__builtin_hlsl_wave_active_any_true` is because we could define the prototype with only scalars. For HLSL`builtins` that take vectors we define the prototype variadic.

https://github.com/llvm/llvm-project/pull/115902