closing out Library*NegativeTest issue and adding comments

tests/language/language.status

-# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+# 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 221 matching lines @@
 GenericTest: Fail
 GenericsTest: Fail
 GetterClosureExecutionOrderTest: Pass # TODO(jmesserly): I don't think this is really passing in the static case
 ImplicitScopeTest: Fail
 ImpliedInterfaceTest: Fail
 IncrOpTest: Fail
 Instanceof2Test: Fail
 InterfaceFactory3NegativeTest: Fail
 IsNotClass4NegativeTest: Fail
 LabelTest: Fail
-Library1NegativeTest: Fail # issue with test see #354
-Library4NegativeTest: Fail # issue with test see #354
-Library5NegativeTest: Fail # issue with test see #354
-Library6NegativeTest: Fail # issue with test see #354
+Library1NegativeTest: Fail
+Library4NegativeTest: Fail
+Library5NegativeTest: Fail
+Library6NegativeTest: Fail
 ListLiteral3Test: Fail # vm and frog throw different exceptions
 ListLiteral4Test: Fail # missing type checks on index operations
 ListTest: Fail         # array bound checks not implemented
 LocalFunction3Test: Fail
 LocalFunctionTest: Fail
 ManyGenericInstanceofTest: Fail
 MapLiteral4Test: Fail # missing checks on map index operations
 MathTest: Fail
 MethodOverrideTest: Fail # checking on precise type rules for methods
 NamedParametersPassingFalsyTest: Fail
@@ skipping 75 matching lines @@
 
 
 [ $arch == x64 ]
 *: Skip
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip