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 b512e4259a374a39a91399f4e2c073e01b4189d2..88bffe3c58fddf62195da4af2101757d10178e4f 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::kHiddenNumberToString)->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::kHiddenRegExpConstructResult)->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::kHiddenStringAdd)->entry;
 }
 
 
@@ -3134,7 +3134,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
 
   __ Bind(&runtime);
   __ PopCPURegList(used_callee_saved_registers);
-  __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
+  __ TailCallRuntime(Runtime::kHiddenRegExpExec, 4, 1);
 
   // Deferred code for string handling.
   // (6) Not a long external string?  If yes, go to (8).
@@ -3550,7 +3550,7 @@ void StringCharCodeAtGenerator::GenerateSlow(
   call_helper.BeforeCall(masm);
   __ SmiTag(index_);
   __ Push(object_, index_);
-  __ CallRuntime(Runtime::kStringCharCodeAt, 2);
+  __ CallRuntime(Runtime::kHiddenStringCharCodeAt, 2);
   __ Mov(result_, x0);
   call_helper.AfterCall(masm);
   __ B(&exit_);
@@ -3832,7 +3832,7 @@ void ICCompareStub::GenerateStrings(MacroAssembler* masm) {
   if (equality) {
     __ TailCallRuntime(Runtime::kStringEquals, 2, 1);
   } else {
-    __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
+    __ TailCallRuntime(Runtime::kHiddenStringCompare, 2, 1);
   }
 
   __ Bind(&miss);
@@ -4222,7 +4222,7 @@ void SubStringStub::Generate(MacroAssembler* masm) {
   __ Ret();
 
   __ Bind(&runtime);
-  __ TailCallRuntime(Runtime::kSubString, 3, 1);
+  __ TailCallRuntime(Runtime::kHiddenSubString, 3, 1);
 
   __ bind(&single_char);
   // x1: result_length
@@ -4399,7 +4399,7 @@ 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::kHiddenStringCompare, 2, 1);
 }