[ic] Split megamorphic stub cache in two caches (for loads and for stores).

src/ic/mips64/ic-mips64.cc

Index: src/ic/mips64/ic-mips64.cc
diff --git a/src/ic/mips64/ic-mips64.cc b/src/ic/mips64/ic-mips64.cc
index 81f1f922afc8a370c1c2f87a3dfbd784601efdc9..42a3da1269b074884652a840fe8cc481f42ec83d 100644
--- a/src/ic/mips64/ic-mips64.cc
+++ b/src/ic/mips64/ic-mips64.cc
@@ -418,10 +418,8 @@ void KeyedLoadIC::GenerateMegamorphic(MacroAssembler* masm) {
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ li(slot, Operand(Smi::FromInt(slot_index)));
 
-  Code::Flags flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(masm, Code::KEYED_LOAD_IC, flags,
-                                               receiver, key, a4, a5, a6, t1);
+  masm->isolate()->load_stub_cache()->GenerateProbe(masm, receiver, key, a4, a5,
+                                                    a6, t1);
   // Cache miss.
   GenerateMiss(masm);
 
@@ -666,10 +664,8 @@ void KeyedStoreIC::GenerateMegamorphic(MacroAssembler* masm,
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ li(slot, Operand(Smi::FromInt(slot_index)));
 
-  Code::Flags flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, Code::KEYED_STORE_IC, flags, receiver, key, a5, a6, a7, t0);
+  masm->isolate()->store_stub_cache()->GenerateProbe(masm, receiver, key, a5,
+                                                     a6, a7, t0);
   // Cache miss.
   __ Branch(&miss);