[builtins] Migrate ToNumber to TurboFan.

src/builtins/x87/builtins-x87.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_X87
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 2890 matching lines @@
   //  -- edx    : message_id as Smi
   //  -- esp[0] : return address
   // -----------------------------------
   __ PopReturnAddressTo(ecx);
   __ Push(edx);
   __ PushReturnAddressFrom(ecx);
   __ Move(esi, Smi::FromInt(0));
   __ TailCallRuntime(Runtime::kAbort);
 }
 
-// static
-void Builtins::Generate_ToNumber(MacroAssembler* masm) {
-  // The ToNumber stub takes one argument in eax.
-  Label not_smi;
-  __ JumpIfNotSmi(eax, &not_smi, Label::kNear);
-  __ Ret();
-  __ bind(&not_smi);
-
-  Label not_heap_number;
-  __ CompareMap(eax, masm->isolate()->factory()->heap_number_map());
-  __ j(not_equal, &not_heap_number, Label::kNear);
-  __ Ret();
-  __ bind(&not_heap_number);
-
-  __ Jump(masm->isolate()->builtins()->NonNumberToNumber(),
-          RelocInfo::CODE_TARGET);
-}
-
 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- eax : actual number of arguments
   //  -- ebx : expected number of arguments
   //  -- edx : new target (passed through to callee)
   //  -- edi : function (passed through to callee)
   // -----------------------------------
 
   Label invoke, dont_adapt_arguments, stack_overflow;
   __ IncrementCounter(masm->isolate()->counters()->arguments_adaptors(), 1);
@@ skipping 257 matching lines @@
 
 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
   Generate_OnStackReplacementHelper(masm, true);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87