Better stack trace support

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 f45670c95a7ef6908193c27c8ccbbf144eb72002..f62413bbdfea524a1a6d95d80c60affbcb72bfdc 100644
--- a/pkg/dev_compiler/test/browser/language_tests.js
+++ b/pkg/dev_compiler/test/browser/language_tests.js
@@ -212,8 +212,6 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       'setter_no_getter_test_01_multi': fail,
       'stack_overflow_stacktrace_test': fail,
       'stack_overflow_test': fail,
-      'stacktrace_rethrow_error_test_none_multi': fail,
-      'stacktrace_rethrow_error_test_withtraceparameter_multi': fail,
       'stacktrace_test': chrome_fail,
       'string_interpolate_null_test': fail,
       'switch_label2_test': fail,
@@ -264,8 +262,6 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       'data_uri_test': fail,
       'double_parse_test_01_multi': fail,
       'double_parse_test_02_multi': firefox_fail,
-      'error_stack_trace1_test': fail,
-      'error_stack_trace2_test': fail,
       'for_in_test': is.firefox('<=50') ? fail : pass,
       'growable_list_test': fail,
       'hash_map2_test': skip_timeout,