Implement .dynamic and throw ObjectNotClosureException in forEach interceptor.

dart/tests/language/language-leg.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.
 
 prefix language
 
 [ $component == leg && $checked ]
 *: Skip
 
 
@@ skipping 179 matching lines @@
 MethodInvocationTest: Fail # TypeError: Cannot call method 'foo$0' of undefined
 NamedParametersPassingFalsyTest: Fail # TypeError: Object Instance of 'BoundClosure' has no method '$call$13'
 NullToStringTest: Fail # TypeError: Cannot call method 'get$toString' of undefined
 StackOverflowTest: Fail # RangeError: Maximum call stack size exceeded
 StackTraceTest: Fail # ReferenceError: stacktrace is not defined
 StringTest: Fail # TypeError: Object Hello has no method 'operator$indexSet$2'
 
 
 # Bad code.
 InstanceofTest: Fail # SyntaxError: Unexpected identifier
-NumberSyntaxTest: Fail # SyntaxError: Unexpected identifier
 
 
 #
 # The following tests are all semantic tests that we can rely on dartc
 # catching for now.
 #
 AbstractStaticNegativeTest: Fail, OK # Negative language test.
 AbstractSyntaxTest/01: Fail, OK # Negative language test.
 AbstractSyntaxTest/02: Fail, OK # Negative language test.
 AssignTopMethodNegativeTest: Fail, OK # Negative language test.
@@ skipping 122 matching lines @@
 TypeVariableScopeTest/03: Fail, OK # Negative language test.
 TypeVariableScopeTest/04: Fail, OK # Negative language test.
 TypeVariableScopeTest/05: Fail, OK # Negative language test.
 
 
 TypeVMTest: Fail, OK # VM specific test.
 
 
 [ $component == leg && $mode == release]
 AssignTopMethodNegativeTest: Crash