Allow Symbols in switch and maps

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 {
@@ skipping 111 matching lines @@
   RawClass* completer_class() const { return completer_class_; }
   void set_completer_class(const Class& value) {
     completer_class_ = value.raw();
   }
 
   RawClass* stream_iterator_class() const { return stream_iterator_class_; }
   void set_stream_iterator_class(const Class& value) {
     stream_iterator_class_ = value.raw();
   }
 
+  RawClass* symbol_class() { return symbol_class_; }
+  void set_symbol_class(const Class& value) {
+    symbol_class_ = value.raw();
+  }
+
   RawClass* one_byte_string_class() const { return one_byte_string_class_; }
   void set_one_byte_string_class(const Class& value) {
     one_byte_string_class_ = value.raw();
   }
 
   RawClass* two_byte_string_class() const { return two_byte_string_class_; }
   void set_two_byte_string_class(const Class& value) {
     two_byte_string_class_ = value.raw();
   }
 
@@ skipping 273 matching lines @@
   }
 
   // Visit all object pointers.
   void VisitObjectPointers(ObjectPointerVisitor* visitor);
 
   // Called to initialize objects required by the vm but which invoke
   // dart code.  If an error occurs then false is returned and error
   // information is stored in sticky_error().
   bool PreallocateObjects();
 
-  void InitAsyncObjects();
+  void InitKnownObjects();
 
   static void Init(Isolate* isolate);
 
  private:
   ObjectStore();
 
   RawObject** from() { return reinterpret_cast<RawObject**>(&object_class_); }
   RawClass* object_class_;
   RawType* object_type_;
   RawClass* null_class_;
@@ skipping 10 matching lines @@
   RawClass* bigint_class_;
   RawClass* double_class_;
   RawType* double_type_;
   RawType* float32x4_type_;
   RawType* int32x4_type_;
   RawType* float64x2_type_;
   RawType* string_type_;
   RawClass* future_class_;
   RawClass* completer_class_;
   RawClass* stream_iterator_class_;
+  RawClass* symbol_class_;
   RawClass* one_byte_string_class_;
   RawClass* two_byte_string_class_;
   RawClass* external_one_byte_string_class_;
   RawClass* external_two_byte_string_class_;
   RawType* bool_type_;
   RawClass* bool_class_;
   RawClass* array_class_;
   RawType* array_type_;
   RawClass* immutable_array_class_;
   RawClass* growable_object_array_class_;
@@ skipping 39 matching lines @@
   }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_