[crankshaft] Remove HLoadNamedGeneric and use HCallWithDescriptor to call LoadIC.

src/crankshaft/arm64/lithium-arm64.cc

Index: src/crankshaft/arm64/lithium-arm64.cc
diff --git a/src/crankshaft/arm64/lithium-arm64.cc b/src/crankshaft/arm64/lithium-arm64.cc
index 3508bd91b5b7bcfe12f46183a5817fa91fd646ef..e25dce64a43d3f654bdc73e0be6e7b537fb9b2eb 100644
--- a/src/crankshaft/arm64/lithium-arm64.cc
+++ b/src/crankshaft/arm64/lithium-arm64.cc
@@ -1621,18 +1621,6 @@ LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
-  LOperand* context = UseFixed(instr->context(), cp);
-  LOperand* object =
-      UseFixed(instr->object(), LoadDescriptor::ReceiverRegister());
-  LOperand* vector = FixedTemp(LoadWithVectorDescriptor::VectorRegister());
-
-  LInstruction* result =
-      DefineFixed(new(zone()) LLoadNamedGeneric(context, object, vector), x0);
-  return MarkAsCall(result, instr);
-}
-
-
 LInstruction* LChunkBuilder::DoLoadRoot(HLoadRoot* instr) {
   return DefineAsRegister(new(zone()) LLoadRoot);
 }