Implement enum types in VM

runtime/vm/symbols.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_SYMBOLS_H_
 #define VM_SYMBOLS_H_
 
 #include "vm/object.h"
 #include "vm/snapshot_ids.h"
 
@@ skipping 13 matching lines @@
   V(AssignIndexToken, "[]=")                                                   \
   V(TopLevel, "::")                                                            \
   V(DefaultLabel, ":L")                                                        \
   V(This, "this")                                                              \
   V(Other, "other")                                                            \
   V(Super, "super")                                                            \
   V(Call, "call")                                                              \
   V(Current, "current")                                                        \
   V(MoveNext, "moveNext")                                                      \
   V(Value, "value")                                                            \
+  V(_EnumHelper, "_EnumHelper")                                                \
+  V(Values, "values")                                                          \
+  V(_EnumNames, "_enum_names")                                                 \
   V(ExprTemp, ":expr_temp")                                                    \
   V(AnonymousClosure, "<anonymous closure>")                                   \
   V(ClosureParameter, ":closure")                                              \
   V(PhaseParameter, ":phase")                                                  \
   V(TypeArgumentsParameter, ":type_arguments")                                 \
   V(AssertionError, "_AssertionError")                                         \
   V(CastError, "_CastError")                                                   \
   V(TypeError, "_TypeError")                                                   \
   V(FallThroughError, "FallThroughError")                                      \
   V(AbstractClassInstantiationError, "AbstractClassInstantiationError")        \
@@ skipping 234 matching lines @@
   V(SpaceExtendsSpace, " extends ")                                            \
   V(SwitchExpr, ":switch_expr")                                                \
   V(TwoNewlines, "\n\n")                                                       \
   V(TwoSpaces, "  ")                                                           \
   V(_instanceOf, "_instanceOf")                                                \
   V(_as, "_as")                                                                \
   V(GetterPrefix, "get:")                                                      \
   V(SetterPrefix, "set:")                                                      \
   V(InitPrefix, "init:")                                                       \
   V(_New, "_new")                                                              \
+  V(Index, "index")                                                            \
   V(DartScheme, "dart:")                                                       \
   V(DartSchemePrivate, "dart:_")                                               \
   V(DartNativeWrappers, "dart:nativewrappers")                                 \
   V(DartNativeWrappersLibName, "dart.nativewrappers")                          \
   V(DartCore, "dart:core")                                                     \
   V(DartCollection, "dart:collection")                                         \
   V(DartInternal, "dart:_internal")                                            \
   V(DartIsolate, "dart:isolate")                                               \
   V(DartMirrors, "dart:mirrors")                                               \
   V(DartTypedData, "dart:typed_data")                                          \
@@ skipping 218 matching lines @@
   friend class SnapshotReader;
   friend class SnapshotWriter;
   friend class ApiMessageReader;
 
   DISALLOW_COPY_AND_ASSIGN(Symbols);
 };
 
 }  // namespace dart
 
 #endif  // VM_SYMBOLS_H_