[builtins] Turn LoadIC_Miss and LoadIC_Slow builtins to TurboFan code stubs.

src/mips64/code-stubs-mips64.cc

Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index f4347c2168ff177fda1aa7485d9075abed3bb262..a794c2869a1226773d0f39fa8c7d16a4f3d879ed 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -1432,8 +1432,7 @@ void LoadIndexedStringStub::Generate(MacroAssembler* masm) {
   char_at_generator.GenerateSlow(masm, PART_OF_IC_HANDLER, call_helper);
 
   __ bind(&miss);
-  PropertyAccessCompiler::TailCallBuiltin(
-      masm, PropertyAccessCompiler::MissBuiltin(Code::KEYED_LOAD_IC));
+  PropertyAccessCompiler::TailCallMissHandler(masm, Code::KEYED_LOAD_IC);
 }
 
 
@@ -1448,8 +1447,7 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
   NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(masm, receiver, a4,
                                                           a5, &miss);
   __ bind(&miss);
-  PropertyAccessCompiler::TailCallBuiltin(
-      masm, PropertyAccessCompiler::MissBuiltin(Code::LOAD_IC));
+  PropertyAccessCompiler::TailCallMissHandler(masm, Code::LOAD_IC);
 }