Update status for VM crash on address sanitizer (asan) bot.

runtime/tests/vm/vm.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.
 
 # These tests are expected to crash on all platforms.
 cc/ArrayNew_Overflow_Crash: Crash, Timeout
 cc/AllocGeneric_Overflow: Crash, Timeout
 cc/CodeImmutability: Crash
 
 cc/SNPrint_BadArgs: Skip
@@ skipping 60 matching lines @@
 dart/optimized_stacktrace_test: StaticWarning
 
 [ $runtime != vm ]
 dart/snapshot_version_test: SkipByDesign  # Spawns processes
 dart/spawn_infinite_loop_test: Skip  # VM shutdown test
 dart/spawn_shutdown_test: Skip  # VM Shutdown test
 
 [ ($runtime == vm || $runtime == dart_precompiled) && $mode == debug && $builder_tag == asan ]
 cc/Dart2JSCompileAll: Skip  # Timeout.
 
+[ $builder_tag == asan ]
+cc/CodeImmutability: Fail,OK # Address Sanitizer turns a crash into a failure.

[Florian Schneider, 2016/02/25 22:35:36]

Hm, it seemed to work before. are we using a newer version of clang as of
recently?

"Crash, Fail"?

+
 [ $noopt ]
 dart/byte_array_test: Crash # Incompatible flag --disable_alloc_stubs_after_gc
 
 [ $noopt || $compiler == precompiler ]
 dart/redirection_type_shuffling_test: CompileTimeError # Imports dart:mirrors
 dart/optimized_stacktrace_test: RuntimeError # Expects line and column numbers
 
 [ $compiler == dart2app ]
 dart/optimized_stacktrace_test: RuntimeError # Expects line and column numbers
 dart/redirection_type_shuffling_test: SkipByDesign # Imports dart:mirrors
 
 [ $runtime == dart_product ]
 dart/data_uri_spawn_test: Skip # Isolate.spawnUri
 
 [ $runtime == dart_precompiled ]
 dart/inline_stack_frame_test: Fail  # Issue 24783 - inlined frames missing
 dart/data_uri_spawn_test: RuntimeError # Isolate.spawnUri
 
 [ $runtime == vm && $mode == product ]
 cc/IsolateSetCheckedMode: Fail,OK  # Expects exact type name.
 cc/LibraryGetClassNames: Fail,OK  # Expects exact type name.
 cc/StackTraceFormat: Fail,OK  # Expects exact type name.