VM: Fix crash parsing metadata with a closure as a const constructor argument.

tests/lib/lib.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.
 
 [ $unchecked ]
 mirrors/redirecting_factory_different_type_test: SkipByDesign # Tests type checks.
 
 [ $compiler == dart2js ]
 async/schedule_microtask6_test: RuntimeError # global error handling is not supported. Issue 5958
 
@@ skipping 274 matching lines @@
 mirrors/removed_api_test: StaticWarning, OK # Deliberately refers to undeclared members.
 mirrors/deferred_type_test: StaticWarning, OK # Deliberately referes to a deferred type in a declaration.
 
 mirrors/deferred_mirrors_metadata_test: Fail # Issue 17522
 
 developer/metrics_test: Fail # Issue 20309
 developer/metrics_num_test: Fail # Issue 20309
 profiler/metrics_test: Fail # Issue 20309
 profiler/metrics_num_test: Fail # Issue 20309
 
+[ $compiler == dartanalyzer || $compiler == dart2analyzer ]
+mirrors/metadata_allowed_values_test/29: Crash # Issue 25287
+
 [ ($compiler == dartanalyzer || $compiler == dart2analyzer) && $checked ]
 mirrors/regress_16321_test/01: MissingCompileTimeError # Issue 16391
 
 [ $compiler == dart2js && $runtime == d8 && $system == windows ]
 async/*deferred*: Skip # Issue 17458
 mirrors/*deferred*: Skip # Issue 17458
 
 [ $compiler == dart2js && $mode == debug ]
 mirrors/native_class_test: Pass, Slow
 
@@ skipping 46 matching lines @@
 mirrors/mirrors_used_typedef_declaration_test/none: Crash # Assertion failure: typedef(Foo) has not been checked for cycles.
 mirrors/typedef_library_test: Crash # Assertion failure: typedef(G) has not been checked for cycles.
 
 [ $compiler != dart2js ]
 async/dart2js_uncaught_error_test: Skip  # JS-integration only test
 
 [ $noopt ]
 mirrors/*: SkipByDesign
 convert/chunked_conversion_utf88_test: Pass, Timeout
 convert/utf85_test: Pass, Timeout