Make Win64 compile.

src/ic.cc

 // Copyright 2011 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 70 matching lines @@
         raw_frame = it.frame();
       }
     }
     if (raw_frame->is_java_script()) {
       JavaScriptFrame* frame = JavaScriptFrame::cast(raw_frame);
       Code* js_code = frame->unchecked_code();
       // Find the function on the stack and both the active code for the
       // function and the original code.
       JSFunction* function = JSFunction::cast(frame->function());
       function->PrintName();
-      int code_offset = address() - js_code->instruction_start();
+      int code_offset =
+          static_cast<int>(address() - js_code->instruction_start());
       PrintF("+%d", code_offset);
     } else {
       PrintF("<unknown>");
     }
     PrintF(" (%c->%c)%s",
            TransitionMarkFromState(old_state),
            TransitionMarkFromState(new_state),
            extra_info);
     name->Print();
     PrintF("]\n");
@@ skipping 2411 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal