Add a symbol for PatchClass as it currently has a null for the name.

vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
@@ skipping 378 matching lines @@
   // Set up names for all VM singleton classes.
   SET_CLASS_NAME(class, Class);
   SET_CLASS_NAME(null, Null);
   SET_CLASS_NAME(dynamic, Dynamic);
   SET_CLASS_NAME(void, Void);
   SET_CLASS_NAME(unresolved_class, UnresolvedClass);
   SET_CLASS_NAME(type, Type);
   SET_CLASS_NAME(type_parameter, TypeParameter);
   SET_CLASS_NAME(type_arguments, TypeArguments);
   SET_CLASS_NAME(instantiated_type_arguments, InstantiatedTypeArguments);
+  SET_CLASS_NAME(patch_class, PatchClass);
   SET_CLASS_NAME(function, Function);
   SET_CLASS_NAME(field, Field);
   SET_CLASS_NAME(literal_token, LiteralToken);
   SET_CLASS_NAME(token_stream, TokenStream);
   SET_CLASS_NAME(script, Script);
   SET_CLASS_NAME(library, LibraryClass);
   SET_CLASS_NAME(library_prefix, LibraryPrefix);
   SET_CLASS_NAME(code, Code);
   SET_CLASS_NAME(instructions, Instructions);
   SET_CLASS_NAME(pc_descriptors, PcDescriptors);
@@ skipping 10896 matching lines @@
 const char* JSRegExp::ToCString() const {
   const String& str = String::Handle(pattern());
   const char* format = "JSRegExp: pattern=%s flags=%s";
   intptr_t len = OS::SNPrint(NULL, 0, format, str.ToCString(), Flags());
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len + 1);
   OS::SNPrint(chars, (len + 1), format, str.ToCString(), Flags());
   return chars;
 }
 
 }  // namespace dart