[stubs] Port ToName stub to TurboFan.

src/arm64/code-stubs-arm64.cc

Index: src/arm64/code-stubs-arm64.cc
diff --git a/src/arm64/code-stubs-arm64.cc b/src/arm64/code-stubs-arm64.cc
index 5f103bc20cff96eac5db90a384700b23660bcf12..67105e3e72c60e8e2a72e5e92eb013f9d8614c19 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -2963,39 +2963,6 @@ void ToStringStub::Generate(MacroAssembler* masm) {
 }
 
 
-void ToNameStub::Generate(MacroAssembler* masm) {
-  // The ToName stub takes one argument in x0.
-  Label is_number;
-  __ JumpIfSmi(x0, &is_number);
-
-  Label not_name;
-  STATIC_ASSERT(FIRST_NAME_TYPE == FIRST_TYPE);
-  __ JumpIfObjectType(x0, x1, x1, LAST_NAME_TYPE, &not_name, hi);
-  // x0: receiver
-  // x1: receiver instance type
-  __ Ret();
-  __ Bind(&not_name);
-
-  Label not_heap_number;
-  __ Cmp(x1, HEAP_NUMBER_TYPE);
-  __ B(ne, &not_heap_number);
-  __ Bind(&is_number);
-  NumberToStringStub stub(isolate());
-  __ TailCallStub(&stub);
-  __ Bind(&not_heap_number);
-
-  Label not_oddball;
-  __ Cmp(x1, ODDBALL_TYPE);
-  __ B(ne, &not_oddball);
-  __ Ldr(x0, FieldMemOperand(x0, Oddball::kToStringOffset));
-  __ Ret();
-  __ Bind(&not_oddball);
-
-  __ Push(x0);  // Push argument.
-  __ TailCallRuntime(Runtime::kToName);
-}
-
-
 void StringHelper::GenerateFlatOneByteStringEquals(
     MacroAssembler* masm, Register left, Register right, Register scratch1,
     Register scratch2, Register scratch3) {