Fix check in exception unwrapping and update status files.

tests/language/language.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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 362 matching lines @@
 label_test: Skip
 string_escape1_negative_test: Skip
 switch3_negative_test: Skip
 switch4_negative_test: Skip
 execute_finally6_test: Skip
 
 # TODO(jmesserly): now that we have a bot, we need to set up Opera testing.
 [ $runtime == opera ]
 *: Skip
 
-[ $runtime == ff ]
+[ $compiler == frog && $runtime == ff ]
 naming_test: Fail
 stack_overflow_test: Fail
 execute_finally7_test: Skip
 static_final_field2_negative_test: Skip
 
-[ $runtime == ff && $system == windows ]
+[ $compiler == frog && $runtime == ff && $system == windows ]
 ct_const2_test: Pass,Fail  # Issue 2101
 
 [ $compiler == frog && $runtime == ie ]
 stack_overflow_test: Fail
 object_dynamic_method_test: Fail
 number_syntax_test: Fail
 
 [ $runtime == ie && ($system == linux || $system == mac) ]
 *: Skip
 
@@ skipping 52 matching lines @@
 constructor_redirect2_negative_test: Skip # Undiagnosed infinite loop.
 
 [ $compiler == frog && $runtime == none ]
 *: Skip
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip