Refactor optimized in hydrogen only runtime functions.

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 f06f6bc6e96e696cd75d740e80ef6f84bcdea698..00c54b2823463d711525d746bc518aecd303ad8d 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -80,7 +80,7 @@ void NumberToStringStub::InitializeInterfaceDescriptor(
   descriptor->register_param_count_ = sizeof(registers) / sizeof(registers[0]);
   descriptor->register_params_ = registers;
   descriptor->deoptimization_handler_ =
-      Runtime::FunctionForId(Runtime::kNumberToString)->entry;
+      Runtime::FunctionForId(Runtime::kNumberToStringInternal)->entry;
 }
 
 
@@ -161,7 +161,7 @@ void RegExpConstructResultStub::InitializeInterfaceDescriptor(
   descriptor->register_param_count_ = sizeof(registers) / sizeof(registers[0]);
   descriptor->register_params_ = registers;
   descriptor->deoptimization_handler_ =
-      Runtime::FunctionForId(Runtime::kRegExpConstructResult)->entry;
+      Runtime::FunctionForId(Runtime::kRegExpConstructResultInternal)->entry;
 }
 
 
@@ -429,7 +429,7 @@ void StringAddStub::InitializeInterfaceDescriptor(
   descriptor->register_param_count_ = sizeof(registers) / sizeof(registers[0]);
   descriptor->register_params_ = registers;
   descriptor->deoptimization_handler_ =
-      Runtime::FunctionForId(Runtime::kStringAdd)->entry;
+      Runtime::FunctionForId(Runtime::kStringAddInternal)->entry;
 }
 
 
@@ -3128,7 +3128,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
 
   __ Bind(&runtime);
   __ PopCPURegList(used_callee_saved_registers);
-  __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
+  __ TailCallRuntime(Runtime::kRegExpExecInternal, 4, 1);
 
   // Deferred code for string handling.
   // (6) Not a long external string?  If yes, go to (8).
@@ -3544,7 +3544,7 @@ void StringCharCodeAtGenerator::GenerateSlow(
   call_helper.BeforeCall(masm);
   __ SmiTag(index_);
   __ Push(object_, index_);
-  __ CallRuntime(Runtime::kStringCharCodeAt, 2);
+  __ CallRuntime(Runtime::kStringCharCodeAtInternal, 2);
   __ Mov(result_, x0);
   call_helper.AfterCall(masm);
   __ B(&exit_);
@@ -3826,7 +3826,7 @@ void ICCompareStub::GenerateStrings(MacroAssembler* masm) {
   if (equality) {
     __ TailCallRuntime(Runtime::kStringEquals, 2, 1);
   } else {
-    __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
+    __ TailCallRuntime(Runtime::kStringCompareInternal, 2, 1);
   }
 
   __ Bind(&miss);
@@ -4216,7 +4216,7 @@ void SubStringStub::Generate(MacroAssembler* masm) {
   __ Ret();
 
   __ Bind(&runtime);
-  __ TailCallRuntime(Runtime::kSubString, 3, 1);
+  __ TailCallRuntime(Runtime::kSubStringInternal, 3, 1);
 
   __ bind(&single_char);
   // x1: result_length
@@ -4393,7 +4393,7 @@ void StringCompareStub::Generate(MacroAssembler* masm) {
 
   // Call the runtime.
   // Returns -1 (less), 0 (equal), or 1 (greater) tagged as a small integer.
-  __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
+  __ TailCallRuntime(Runtime::kStringCompareInternal, 2, 1);
 }