Make the Firefox trace RegExp not go exponential on V8.

pkg/pkg.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Run this test manually to verify that the fixnum library produces
 # the same results as native ints on a set of directed and random inputs.
 # Skip it when running automated tests because it times out.  This
 # test only makes sense on runtimes that support 64-bit integer
 # arithmetic natively, i.e., the VM.
 fixnum/test/int_64_vm_test: Skip
@@ skipping 73 matching lines @@
 
 [ $compiler == dart2js && $csp ]
 unittest/test/unittest_test: Pass, Crash # Issue 10935
 
 serialization/test/serialization_test: Fail # Issue 6490
 serialization/test/no_library_test: Fail # Issue 6490
 
 [ $compiler == dart2js && $minified ]
 serialization/test/serialization_test: Fail # Issue 6490
 serialization/test/no_library_test: Fail # Issue 6490
-stack_trace/test/trace_test: Pass, Timeout # Issue 11645
 
 # The unminified unittest tests test that the real names of Dart types are
 # printed. Minified versions of these tests exist that test the behavior when
 # minified.
 unittest/test/*_unminified_test: Skip # DO NOT COPY THIS UNLESS YOU WORK ON DART2JS
 
 [ $compiler == dart2js && $unchecked && ($runtime == d8 || $runtime == chrome || $runtime == drt) ]
 crypto/test/sha1_test: Fail # V8 bug: https://code.google.com/p/v8/issues/detail?id=2692
 
 [ $compiler == dart2js && $browser ]
@@ skipping 80 matching lines @@
 # test on Dartium, which requires all tests to have a library.
 [ $runtime == dartium || $runtime == drt ]
 serialization/test/no_library_test: Skip # Expected Failure
 
 [ ($runtime == dartium || $runtime == drt) && $compiler == none ]
 pathos/test/pathos_dart2js_test: Fail, OK # Issue 6490
 
 # Skip mdv tests on command line VM, they only run in the browser.
 [ $runtime == vm ]
 mdv: Skip