Prevent mutation of final variables

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 301 matching lines @@
 #
 # Add new dartc annotations above in alphabetical order
 #
 
 # VM specific tests that should not be run by DartC.
 *vm_test: Skip
 *vm_negative_test: Skip
 
 
 [ $compiler == none && $runtime == drt ]
+final_variable_assignment_test/01: Fail
+final_variable_assignment_test/02: Fail
+final_variable_assignment_test/03: Fail
+final_variable_assignment_test/04: Fail
 gc_test: Skip # Issue 1487
 prefix_new_test: Fail
 import_combinators_test: Fail
 export_test: Fail # Issue 5785
 export_cyclic_test: Fail # Issue 5785
 first_class_types_libraries_test: Fail # Issue 2264
 local_export_test: Fail # http://dartbug.com/2264
 
 
 [ $runtime == dartium ]
@@ skipping 22 matching lines @@
 *: Skip
 
 [ $compiler == dart2dart ]
 # Calling unresolved class constructor:
 # call_constructor_on_unresolvable_class_test/07: Fail
 call_nonexistent_constructor_test: Fail
 
 # Renaming type from platform library:
 dynamic_test: Fail
 
+# Missing compile-time error when modifying final local variables
+final_variable_assignment_test/01: Fail
+final_variable_assignment_test/02: Fail
+final_variable_assignment_test/03: Fail
+final_variable_assignment_test/04: Fail
+
 # Factory for another interface (will be obsolete soon).
 # factory2_negative_test: Fail
 # factory3_negative_test: Fail
 # factory_negative_test: Fail
 default_factory_test: Fail
 factory2_test: Fail
 factory3_test: Fail
 factory4_test: Fail
 factory5_test: Fail
 factory_implementation_test: Fail
@@ skipping 191 matching lines @@
 type_error_test: Fail, OK # VM bug: http://dartbug.com/5280
 
 call_through_getter_test: Fail # issue 6130
 call_through_null_getter_test: Fail # issue 6130
 local_function_test: Fail # issue 6130
 naming_test: Fail # issue 6130
 
 # This is a VM error when the compiled code is run.
 invocation_mirror_test: Fail # issue 3326, 3622.
 invocation_mirror_indirect_test: Fail # issue 3326, 3622.