[turbofan] JSGenericLowering mostly uses builtins instead of code stubs now

src/builtins/ia32/builtins-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 2467 matching lines @@
       {
         // Convert receiver using ToObject.
         // TODO(bmeurer): Inline the allocation here to avoid building the frame
         // in the fast case? (fall back to AllocateInNewSpace?)
         FrameScope scope(masm, StackFrame::INTERNAL);
         __ SmiTag(eax);
         __ Push(eax);
         __ Push(edi);
         __ mov(eax, ecx);
         __ Push(esi);
-        ToObjectStub stub(masm->isolate());
-        __ CallStub(&stub);
+        __ Call(masm->isolate()->builtins()->ToObject(),
+                RelocInfo::CODE_TARGET);
         __ Pop(esi);
         __ mov(ecx, eax);
         __ Pop(edi);
         __ Pop(eax);
         __ SmiUntag(eax);
       }
       __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
       __ bind(&convert_receiver);
     }
     __ mov(Operand(esp, eax, times_pointer_size, kPointerSize), ecx);
@@ skipping 642 matching lines @@
 
 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
   Generate_OnStackReplacementHelper(masm, true);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32