SWDEV-280131 - Fix __half2 member access bug

Change-Id: Ic11750d18e4ba47446a7e494c3089a19cb4df783

hipamd/tests/src/deviceLib/hipTestNativeHalf.cpp

@@ -159,6 +159,9 @@ void __half2Test(bool* result, __half2 a) {
     // Dot Functions
     result[0] = amd_mixed_dot(a, a, 1, 1) && result[0];
     #endif
+
+    half X = a.x;
+    half Y = a.y;
 }
 
 int main() {