Lower the priority of HelperLaneTestWave (#3425)

tools/clang/unittests/HLSL/ExecutionTest.cpp

@@ -306,7 +306,9 @@ public:
   TEST_METHOD(AtomicsShared64Test);
   TEST_METHOD(AtomicsFloatTest);
   TEST_METHOD(HelperLaneTest);
-  TEST_METHOD(HelperLaneTestWave);
+  BEGIN_TEST_METHOD(HelperLaneTestWave)
+    TEST_METHOD_PROPERTY(L"Priority", L"2") // Remove this line once warp handles this
+  END_TEST_METHOD()
   TEST_METHOD(SignatureResourcesTest)
   TEST_METHOD(DynamicResourcesTest)
   TEST_METHOD(QuadReadTest)