Adds new apis Dart_GetField/Dart_SetField.

vm/object.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_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1729 matching lines @@
 
   static RawLibrary* New(const String& url);
 
   // Library scope name dictionary.
   void AddClass(const Class& cls) const;
   void AddObject(const Object& obj, const String& name) const;
   RawObject* LookupObject(const String& name) const;
   RawClass* LookupClass(const String& name) const;
   RawObject* LookupLocalObject(const String& name) const;
   RawClass* LookupLocalClass(const String& name) const;
+  RawField* LookupLocalField(const String& name) const;
+  RawFunction* LookupLocalFunction(const String& name) const;
   RawLibraryPrefix* LookupLocalLibraryPrefix(const String& name) const;
   RawScript* LookupScript(const String& url) const;
   RawArray* LoadedScripts() const;
 
   void AddAnonymousClass(const Class& cls) const;
 
   // Library imports.
   RawString* LookupImportMap(const String& name) const;
   void AddImport(const Library& library) const;
   RawLibrary* LookupImport(const String& url) const;
 
   RawFunction* LookupFunctionInSource(const String& script_url,
                                       intptr_t line_number) const;
   RawFunction* LookupFunctionInScript(const Script& script,
                                       intptr_t token_index) const;
 
   // Resolving native methods for script loaded in the library.
   Dart_NativeEntryResolver native_entry_resolver() const {
     return raw_ptr()->native_entry_resolver_;
   }
   void set_native_entry_resolver(Dart_NativeEntryResolver value) const {
     raw_ptr()->native_entry_resolver_ = value;
   }
 
-  RawString* PrivateName(const char* name);
+  RawString* PrivateName(const String& name) const;
 
   void Register() const;
 
   RawLibrary* next_registered() const { return raw_ptr()->next_registered_; }
 
   RawString* DuplicateDefineErrorString(const String& entry_name,
                                         const Library& conflicting_lib) const;
   static RawLibrary* LookupLibrary(const String& url);
   static RawString* CheckForDuplicateDefinition();
   static bool IsKeyUsed(intptr_t key);
@@ skipping 2021 matching lines @@
 }
 
 
 void Context::SetAt(intptr_t index, const Instance& value) const {
   StorePointer(InstanceAddr(index), value.raw());
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_