Introduce accessors on builtins instance

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 6385416bed983a2d5a26fd8532902dcc0657c446..684cd0522a94188052e8803d632e8f1ade018a00 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2100,7 +2100,7 @@ void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   ASSERT(ToRegister(instr->result()).is(rax));
 
   __ Move(rcx, instr->name());
-  Handle<Code> ic(isolate()->builtins()->builtin(Builtins::LoadIC_Initialize));
+  Handle<Code> ic = Builtins::builtin(Builtins::LoadIC_Initialize, isolate());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
@@ -2226,8 +2226,8 @@ void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(rdx));
   ASSERT(ToRegister(instr->key()).is(rax));
 
-  Handle<Code> ic(isolate()->builtins()->builtin(
-      Builtins::KeyedLoadIC_Initialize));
+  Handle<Code> ic =
+      Builtins::builtin(Builtins::KeyedLoadIC_Initialize, isolate());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
@@ -2781,8 +2781,8 @@ void LCodeGen::DoCallNew(LCallNew* instr) {
   ASSERT(ToRegister(instr->InputAt(0)).is(rdi));
   ASSERT(ToRegister(instr->result()).is(rax));
 
-  Handle<Code> builtin(isolate()->builtins()->builtin(
-      Builtins::JSConstructCall));
+  Handle<Code> builtin =
+      Builtins::builtin(Builtins::JSConstructCall, isolate());
   __ Set(rax, instr->arity());
   CallCode(builtin, RelocInfo::CONSTRUCT_CALL, instr);
 }
@@ -2828,9 +2828,10 @@ void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   ASSERT(ToRegister(instr->value()).is(rax));
 
   __ Move(rcx, instr->hydrogen()->name());
-  Handle<Code> ic(isolate()->builtins()->builtin(
-      info_->is_strict() ? Builtins::StoreIC_Initialize_Strict
-                         : Builtins::StoreIC_Initialize));
+  Builtins::Name builtin = info_->is_strict()
+      ? Builtins::StoreIC_Initialize_Strict
+      : Builtins::StoreIC_Initialize;
+  Handle<Code> ic = Builtins::builtin(builtin, isolate());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
@@ -2899,9 +2900,10 @@ void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->key()).is(rcx));
   ASSERT(ToRegister(instr->value()).is(rax));
 
-  Handle<Code> ic(isolate()->builtins()->builtin(
-      info_->is_strict() ? Builtins::KeyedStoreIC_Initialize_Strict
-                         : Builtins::KeyedStoreIC_Initialize));
+  Builtins::Name builtin = info_->is_strict()
+      ? Builtins::KeyedStoreIC_Initialize_Strict
+      : Builtins::KeyedStoreIC_Initialize;
+  Handle<Code> ic = Builtins::builtin(builtin, isolate());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }