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

[Ashley Coleman via cfe-commits]

================
@@ -2206,6 +2206,15 @@ float4 trunc(float4);
 // Wave* builtins
 //===----------------------------------------------------------------------===//
 
+/// \brief Returns true if the expression is true in any active lane in the
+/// current wave.
+///
+/// \param Val The boolean expression to evaluate.
+/// \return True if the expression is true in any lane.
+_HLSL_AVAILABILITY(shadermodel, 6.0)
----------------
V-FEXrt wrote:

I was just kind of following what others had done. But imo its worth keeping if for nothing else besides the documentation

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