KeyedLoadIC should have same register spec as LoadIC.

src/arm64/lithium-arm64.cc

Index: src/arm64/lithium-arm64.cc
diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
index a5d59be6f1ca576877feafb811d924eb8d0fb1ab..e99f010abb739fa6281984f609b4c2ca1a653c4f 100644
--- a/src/arm64/lithium-arm64.cc
+++ b/src/arm64/lithium-arm64.cc
@@ -1715,8 +1715,8 @@ LInstruction* LChunkBuilder::DoLoadKeyed(HLoadKeyed* instr) {
 
 LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
-  LOperand* object = UseFixed(instr->object(), KeyedLoadIC::ReceiverRegister());
-  LOperand* key = UseFixed(instr->key(), KeyedLoadIC::NameRegister());
+  LOperand* object = UseFixed(instr->object(), LoadIC::ReceiverRegister());
+  LOperand* key = UseFixed(instr->key(), LoadIC::NameRegister());
 
   LInstruction* result =
       DefineFixed(new(zone()) LLoadKeyedGeneric(context, object, key), x0);