- Name the enum containing the bootstrap library ids.

runtime/vm/object_store.h

 // 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.
 
 #ifndef VM_OBJECT_STORE_H_
 #define VM_OBJECT_STORE_H_
 
 #include "vm/object.h"
 
 namespace dart {
 
 // Forward declarations.
 class Isolate;
 class ObjectPointerVisitor;
 
 // The object store is a per isolate instance which stores references to
 // objects used by the VM.
 // TODO(iposva): Move the actual store into the object heap for quick handling
 // by snapshots eventually.
 class ObjectStore {
  public:
-  enum {
+  enum BootstrapLibraryId {
     kNone = 0,
     kAsync,
     kCore,
     kCollection,
     kCollectionDev,
     kConvert,
     kIsolate,
     kJson,
     kMath,
     kMirrors,
@@ skipping 242 matching lines @@
   RawLibrary* collection_dev_library() const {
     return collection_dev_library_;
   }
   RawLibrary* convert_library() const { return convert_library_; }
   RawLibrary* isolate_library() const { return isolate_library_; }
   RawLibrary* json_library() const { return json_library_; }
   RawLibrary* math_library() const { return math_library_; }
   RawLibrary* mirrors_library() const { return mirrors_library_; }
   RawLibrary* typed_data_library() const { return typed_data_library_; }
   RawLibrary* utf_library() const { return utf_library_; }
-  void set_bootstrap_library(intptr_t index, const Library& value) {
+  void set_bootstrap_library(BootstrapLibraryId index, const Library& value) {
     switch (index) {
       case kAsync:
         async_library_ = value.raw();
         break;
       case kCore:
         core_library_ = value.raw();
         break;
       case kCollection:
         collection_library_ = value.raw();
         break;
@@ skipping 207 matching lines @@
   RawObject** to() { return reinterpret_cast<RawObject**>(&keyword_symbols_); }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_