Cache resolution of two static functions frequently used in I/O.

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 451 matching lines @@
   void set_out_of_memory(const Instance& value) {
     out_of_memory_ = value.raw();
   }
 
   RawArray* keyword_symbols() const { return keyword_symbols_; }
   void set_keyword_symbols(const Array& value) {
     keyword_symbols_ = value.raw();
   }
   void InitKeywordTable();
 
+  RawFunction* receive_port_create_function() const {
+    return receive_port_create_function_;
+  }
+  void set_receive_port_create_function(const Function& function) {
+    receive_port_create_function_ = function.raw();
+  }
+
+  RawFunction* handle_message_function() const {
+    return handle_message_function_;
+  }
+  void set_handle_message_function(const Function& function) {
+    handle_message_function_ = function.raw();
+  }
+
   // 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();
 
   static void Init(Isolate* isolate);
 
@@ skipping 71 matching lines @@
   RawLibrary* builtin_library_;
   RawLibrary* root_library_;
   RawGrowableObjectArray* libraries_;
   RawGrowableObjectArray* pending_classes_;
   RawError* sticky_error_;
   RawString* unhandled_exception_handler_;
   RawContext* empty_context_;
   RawInstance* stack_overflow_;
   RawInstance* out_of_memory_;
   RawArray* keyword_symbols_;
+  RawFunction* receive_port_create_function_;
+  RawFunction* handle_message_function_;
   RawObject** to() { return reinterpret_cast<RawObject**>(&keyword_symbols_); }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_