Fix #29003

pkg/dev_compiler/test/browser/language_tests.js

Index: pkg/dev_compiler/test/browser/language_tests.js
diff --git a/pkg/dev_compiler/test/browser/language_tests.js b/pkg/dev_compiler/test/browser/language_tests.js
index 6d9d188954b364cb16c1d08747ab27a0aae03642..6dcebd7f80b893a1d3c978026000def317fbfae2 100644
--- a/pkg/dev_compiler/test/browser/language_tests.js
+++ b/pkg/dev_compiler/test/browser/language_tests.js
@@ -221,16 +221,12 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       'mint_arithmetic_test': fail,
       'mixin_forwarding_constructor3_test': fail,
       'mixin_implements_test': fail,
-      'mixin_issue10216_2_test': fail,
-      'mixin_mixin2_test': fail,
-      'mixin_mixin3_test': fail,
       'mixin_mixin4_test': fail,
       'mixin_mixin5_test': fail,
       'mixin_mixin6_test': fail,
       'mixin_mixin7_test': fail,
       'mixin_mixin_bound2_test': fail,
       'mixin_mixin_bound_test': fail,
-      'mixin_mixin_test': fail,
       'mixin_regress_13688_test': fail,
       'modulo_test': fail,
       'named_parameter_clash_test': fail,