Fix int test

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 4331c8c9d369bc39db85ed44c755b85d1d61cc2c..23f24ec7bb97e47f2e56a5a941052ad594aa8bee 100644
--- a/pkg/dev_compiler/test/browser/language_tests.js
+++ b/pkg/dev_compiler/test/browser/language_tests.js
@@ -175,7 +175,6 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       'instanceof2_test': fail,
       'instanceof4_test_01_multi': fail,
       'instanceof4_test_none_multi': fail,
-      'instanceof_optimized_test': fail,
       'integer_division_by_zero_test': fail,
       'issue_22780_test_01_multi': fail,
       'issue23244_test': fail,
@@ -293,7 +292,6 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       'nan_infinity_test_01_multi': fail,
       'null_nosuchmethod_test': fail,
       'null_test': fail,
-      'num_sign_test': fail,
       'reg_exp_all_matches_test': whitelist,
       'reg_exp_start_end_test': whitelist,
       'regress_r21715_test': fail,