Update status for browser tests

dart/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 318 matching lines @@
 ImplicitThisTest/02: Fail # Issue 376
 ImplicitThisTest/03: Fail # Issue 376
 ImplicitThisTest/04: Fail # Issue 376
 ImplicitThisTest/none: Fail # Issue 376
 
 #Issue 1308
 NamedParameters2Test: Fail
 NamedParameters3Test: Fail
 NamedParameters4Test: Fail
 
-# Issue 1352
-StringEscape3NegativeTest: Fail
-StringEscape4NegativeTest: Fail
+StringEscape4NegativeTest: Fail # Issue 1352
 
 
 [ $component == webdriver && ($browser == ff || $browser == safari) ]
 MethodInvocationTest: Fail
 Private3Test: Fail
 StackTraceTest: Fail
 StringInterpolateNPETest: Fail
 
 [ $component == webdriver && $browser == safari ]
 BlockScopeTest: Fail
@@ skipping 32 matching lines @@
 
 [ $component == frog || $component == frogsh ]
 # these tests are inconsistent in frogium and frogsh-node, investigate
 StaticField1RunNegativeTest: Pass
 StaticField2RunNegativeTest: Pass
 SyntaxTest/28: Fail # Issue 1109
 SyntaxTest/29: Fail # Issue 1109
 SyntaxTest/31: Fail # Issue 1109
 SyntaxTest/32: Fail # Issue 1109
 SyntaxTest/33: Fail # Issue 1109
+StringEscape3NegativeTest: Fail # Issue 1352
 
 [ $component == frogium ]
 # these tests are inconsistent in frogium and frogsh-node, investigate
 StaticField1RunNegativeTest: Pass # but error is not correct
 StaticField2RunNegativeTest: Pass # but error is not correct
 
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip