Various scanner fixes:

dart/tests/language/language.status

 # Copyright (c) 2011, 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 317 matching lines @@
 PrivateMemberTest/01: Fail # test seems bad - see issue #353
 PrivateMemberTest/02: Fail # test seems bad - see issue #353
 PrivateMemberTest/03: Fail # test seems bad - see issue #353
 PrivateMemberTest/04: Fail # test seems bad - see issue #353
 StringConcatTest: Fail
 
 [ ($component == frogsh ||  $component == frog || $component == leg || $component == frogium) && $checked ]
 PrivateMemberTest/none: Fail # test seems bad - see issue #353
 
 [ $component == leg ]
-FinalVarNegativeTest: Fail
 StaticTopLevelTest/00: Fail
 StaticTopLevelTest/03: Fail
-StringInterpolate2Test: Fail
 ToplevelCollision2Test/01: Fail # added in r1934
 TypeVariableBoundsTest/none: Pass # I think the "cancel leg" message is confusing the test harness? Leg is bailing on all these tests after seeing the "extends" factory syntax.
 TypeVariableBoundsTest/00: Pass
 TypeVariableBoundsTest/03: Pass
 TypeVariableBoundsTest/04: Pass
 TypeVariableBoundsTest/02: Fail
 TypeVariableBoundsTest/06: Fail
 
 # Parser errors.
 OverrideFieldTest/01: Skip
@@ skipping 22 matching lines @@
 StaticField2RunNegativeTest: Fail
 
 [ $arch == x64 ]
 *: Skip
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip