Make unit tests default to using highest language level possible
@@ -595,8 +595,7 @@ public abstract class CompilerTestCase {
// TODO(sdh): Initialize *all* the options here, but first we must ensure no subclass
// is changing them in the constructor, rather than in their own setUp method.
- this.acceptedLanguage =
- LanguageMode.ECMASCRIPT_NEXT_IN; // TODO(nickreid): Consider ES_UNSUPPORTED
+ this.acceptedLanguage = LanguageMode.UNSUPPORTED;
this.moduleResolutionMode = ModuleLoader.ResolutionMode.BROWSER;
this.parseJsDocDocumentation = JsDocParsing.TYPES_ONLY;
this.allowExternsChanges = false;
