Train wreck reduction.

src/ic.cc

 // Copyright 2012 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 2368 matching lines @@
       PrintF(" (%s->%s)#%s @ %p]\n",
              UnaryOpIC::GetName(previous_type),
              UnaryOpIC::GetName(type),
              Token::Name(op),
              static_cast<void*>(*code));
     }
     UnaryOpIC ic(isolate);
     ic.patch(*code);
   }
 
-  Handle<JSBuiltinsObject> builtins = Handle<JSBuiltinsObject>(
-      isolate->thread_local_top()->context_->builtins(), isolate);
+  Handle<JSBuiltinsObject> builtins(isolate->js_builtins_object());
   Object* builtin = NULL;  // Initialization calms down the compiler.
   switch (op) {
     case Token::SUB:
       builtin = builtins->javascript_builtin(Builtins::UNARY_MINUS);
       break;
     case Token::BIT_NOT:
       builtin = builtins->javascript_builtin(Builtins::BIT_NOT);
       break;
     default:
       UNREACHABLE();
@@ skipping 116 matching lines @@
 #endif
     BinaryOpIC ic(isolate);
     ic.patch(*code);
 
     // Activate inlined smi code.
     if (previous_overall == BinaryOpIC::UNINITIALIZED) {
       PatchInlinedSmiCode(ic.address(), ENABLE_INLINED_SMI_CHECK);
     }
   }
 
-  Handle<JSBuiltinsObject> builtins = Handle<JSBuiltinsObject>(
-      isolate->thread_local_top()->context_->builtins(), isolate);
+  Handle<JSBuiltinsObject> builtins(isolate->js_builtins_object());
   Object* builtin = NULL;  // Initialization calms down the compiler.
   switch (op) {
     case Token::ADD:
       builtin = builtins->javascript_builtin(Builtins::ADD);
       break;
     case Token::SUB:
       builtin = builtins->javascript_builtin(Builtins::SUB);
       break;
     case Token::MUL:
       builtin = builtins->javascript_builtin(Builtins::MUL);
@@ skipping 261 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal