Test seems to not time out anymore.

tests/language/language_dart2js.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.
 
 [ $compiler == dart2js || $compiler == dart2dart ]
 class_literal_test/01: Fail # Class literals are expression now; delete this test.
 class_literal_test/02: Fail # Class literals are expression now; delete this test.
 class_literal_test/05: Fail # Class literals are expression now; delete this test.
 class_literal_test/06: Fail # Class literals are expression now; delete this test.
 class_literal_test/07: Fail # Class literals are expression now; delete this test.
@@ skipping 336 matching lines @@
 factory3_test: Fail
 stack_overflow_test: Fail
 type_checks_in_factory_method_test: Fail
 
 
 [ $compiler == dart2js && $runtime == safari ]
 execute_finally8_test: Fail # Issue: 7414
 execute_finally9_test: Fail # Issue: 7414
 null_access_error_test: Fail # Issue: 7414
 string_interpolate_null_test: Fail # Issue: 7414
-arithmetic_test: Skip # BUG(3492): Times out.
 call_through_null_getter_test: Fail # Expected: ObjectNotClosureException got: Instance of 'TypeError'
 closure3_test: Fail # Uncaught error: Instance of 'TypeError'
 method_invocation_test: Fail # Uncaught error: Instance of 'TypeError'
 null_pointer_exception_test: Fail # Uncaught error: Instance of 'TypeError'
 string_interpolate_npe_test: Fail # Uncaught error: Instance of 'TypeError'
 
 [ $runtime == opera ]
 null_access_error_test: Fail # Issue: 7413
 string_interpolate_null_test: Fail # Issue: 7413
 call_through_null_getter_test: Fail
 closure3_test: Fail
 execute_finally3_test: Fail
 method_invocation_test: Fail
 null_pointer_exception_test: Fail
 stack_overflow_test: Fail
 string_interpolate_npe_test: Fail
 closure_call_wrong_argument_count_negative_test: Skip
 label_test: Skip