Prevent optimizations

Author: ShortDevelopment

bin/NativeTests/JsRTApiTest.cpp

@@ -128,6 +128,11 @@ namespace JsRTApiTest
         valueRef = JS_INVALID_REFERENCE;
         valueRefFromWeakRef = JS_INVALID_REFERENCE;
 
+        // Prevent optimizations to remove the assignments above
+        // as they are not needed from a control-flow perspective.
+        CHECK(valueRef == JS_INVALID_REFERENCE);
+        CHECK(valueRefFromWeakRef == JS_INVALID_REFERENCE);
+
         CHECK(JsCollectGarbage(runtime) == JsNoError);
 
         // JsGetWeakReferenceValue should return an invalid reference after the value was GC'd.