ExecutionTests: Long Vectors - Fix WaveActiveAllEqual for bools (microsoft#7932)

Fixes a bug in the WaveActiveAllEqual hlsl test code where we intended
to make the last value of the input vector anything but the input value.
The logic was broken for bools. Updated by adding helper functions for
each possible type to handle accordingly.

Author: alsepkow

tools/clang/unittests/HLSLExec/ShaderOpArith.xml

@@ -4147,11 +4147,26 @@ void MSMain(uint GID : SV_GroupIndex,
         #endif
 
         #ifdef FUNC_WAVE_ACTIVE_ALL_EQUAL
+        bool MakeDifferent(bool A) { return !A; }
+        uint MakeDifferent(uint A) { return A ^ 1; }
+        uint64_t MakeDifferent(uint64_t A) { return A ^ 1; }
+        int MakeDifferent(int A) { return A ^ 1; }
+        int64_t MakeDifferent(int64_t A) { return A ^ 1; }
+        half MakeDifferent(half A) { return A + (half)1.0h; }
+        float MakeDifferent(float A) { return A + 1.0f; }
+        double MakeDifferent(double A) { return A + 1.0; }
+
+        #if defined(__HLSL_ENABLE_16BIT_TYPES)
+        uint16_t MakeDifferent(uint16_t A) { return A ^ 1; }
+        int16_t MakeDifferent(int16_t A) { return A ^ 1; }
+        #endif // defined(__HLSL_ENABLE_16BIT_TYPES)
+
         vector<OUT_TYPE, NUM> TestWaveActiveAllEqual(vector<TYPE, NUM> Vector)
         {
           if(WaveGetLaneIndex() == (WaveGetLaneCount() - 1))
           {
-            Vector[NUM - 1] = (TYPE)1337;
+            // We just want to set the last element to any different value.
+            Vector[NUM - 1] = MakeDifferent(Vector[NUM - 1]);
           }
 
           return WaveActiveAllEqual(Vector);