change bool to uint

Author: Keenuts

clang/lib/Headers/hlsl/hlsl_alias_intrinsics.h

@@ -2352,7 +2352,7 @@ __attribute__((convergent)) bool WaveIsFirstLane();
 
 _HLSL_AVAILABILITY(shadermodel, 6.0)
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_get_lane_count)
-__attribute__((convergent)) bool WaveGetLaneCount();
+__attribute__((convergent)) uint WaveGetLaneCount();
 
 //===----------------------------------------------------------------------===//
 // WaveReadLaneAt builtins