RFC: Switch to ast ids (instead of positions) for type feedback.

src/handles.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 832 matching lines @@
     result = CompileLazyHelper(&info, flag);
     ASSERT(!result || function->is_compiled());
   }
   if (result && function->is_compiled()) {
     PROFILE(FunctionCreateEvent(*function));
   }
   return result;
 }
 
 
-bool CompileOptimized(Handle<JSFunction> function, int osr_ast_id) {
+bool CompileOptimized(Handle<JSFunction> function, AstId osr_ast_id) {
   CompilationInfo info(function);
   info.SetOptimizing(osr_ast_id);
   bool result = CompileLazyHelper(&info, KEEP_EXCEPTION);
   if (result) PROFILE(FunctionCreateEvent(*function));
   return result;
 }
 
 
 OptimizedObjectForAddingMultipleProperties::
 OptimizedObjectForAddingMultipleProperties(Handle<JSObject> object,
@@ skipping 18 matching lines @@
 
 OptimizedObjectForAddingMultipleProperties::
 ~OptimizedObjectForAddingMultipleProperties() {
   // Reoptimize the object to allow fast property access.
   if (has_been_transformed_) {
     TransformToFastProperties(object_, unused_property_fields_);
   }
 }
 
 } }  // namespace v8::internal