Removing redundant stub for runtime native calls.

src/ia32/codegen-ia32.cc

 // Copyright 2010 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 3883 matching lines @@
 }
 
 
 void CodeGenerator::VisitDebuggerStatement(DebuggerStatement* node) {
   ASSERT(!in_spilled_code());
   Comment cmnt(masm_, "[ DebuggerStatement");
   CodeForStatementPosition(node);
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // Spill everything, even constants, to the frame.
   frame_->SpillAll();
-  frame_->CallRuntime(Runtime::kDebugBreak, 0);
+
+  DebugerStatementStub ces;
+  frame_->CallStub(&ces, 0);
   // Ignore the return value.
 #endif
 }
 
 
 void CodeGenerator::InstantiateBoilerplate(Handle<JSFunction> boilerplate) {
   ASSERT(boilerplate->IsBoilerplate());
 
   // The inevitable call will sync frame elements to memory anyway, so
   // we do it eagerly to allow us to push the arguments directly into
@@ skipping 6188 matching lines @@
 
   // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater)
   // tagged as a small integer.
   __ bind(&runtime);
   __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1);
 }
 
 #undef __
 
 } }  // namespace v8::internal