[builtins] Migrate ToNumber to TurboFan.

src/builtins/arm64/builtins-arm64.cc

 // Copyright 2013 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_ARM64
 
 #include "src/arm64/frames-arm64.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
@@ skipping 2898 matching lines @@
   // ----------- S t a t e -------------
   //  -- x1 : message_id as Smi
   //  -- lr : return address
   // -----------------------------------
   MacroAssembler::NoUseRealAbortsScope no_use_real_aborts(masm);
   __ Push(x1);
   __ Move(cp, Smi::FromInt(0));
   __ TailCallRuntime(Runtime::kAbort);
 }
 
-// static
-void Builtins::Generate_ToNumber(MacroAssembler* masm) {
-  // The ToNumber stub takes one argument in x0.
-  Label not_smi;
-  __ JumpIfNotSmi(x0, &not_smi);
-  __ Ret();
-  __ Bind(&not_smi);
-
-  Label not_heap_number;
-  __ CompareObjectType(x0, x1, x1, HEAP_NUMBER_TYPE);
-  // x0: receiver
-  // x1: receiver instance type
-  __ B(ne, &not_heap_number);
-  __ Ret();
-  __ Bind(&not_heap_number);
-
-  __ Jump(masm->isolate()->builtins()->NonNumberToNumber(),
-          RelocInfo::CODE_TARGET);
-}
-
 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
   ASM_LOCATION("Builtins::Generate_ArgumentsAdaptorTrampoline");
   // ----------- S t a t e -------------
   //  -- x0 : actual number of arguments
   //  -- x1 : function (passed through to callee)
   //  -- x2 : expected number of arguments
   //  -- x3 : new target (passed through to callee)
   // -----------------------------------
 
   Register argc_actual = x0;    // Excluding the receiver.
@@ skipping 131 matching lines @@
     __ Unreachable();
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM