Fastpath some spread-call desugaring.

src/crankshaft/arm64/lithium-codegen-arm64.cc

Index: src/crankshaft/arm64/lithium-codegen-arm64.cc
diff --git a/src/crankshaft/arm64/lithium-codegen-arm64.cc b/src/crankshaft/arm64/lithium-codegen-arm64.cc
index 0a59c8db4337a5fa7d135c077d4fdd6f66b7d91c..4d8e6615e7c16c76ec90f5c301f654aa5b683cda 100644
--- a/src/crankshaft/arm64/lithium-codegen-arm64.cc
+++ b/src/crankshaft/arm64/lithium-codegen-arm64.cc
@@ -3240,11 +3240,11 @@ void LCodeGen::DoLoadKeyedFixed(LLoadKeyedFixed* instr) {
     __ B(ne, &done);
     if (info()->IsStub()) {
       // A stub can safely convert the hole to undefined only if the array
-      // protector cell contains (Smi) Isolate::kArrayProtectorValid. Otherwise
+      // protector cell contains (Smi) Isolate::kProtectorValid. Otherwise
       // it needs to bail out.
       __ LoadRoot(result, Heap::kArrayProtectorRootIndex);
       __ Ldr(result, FieldMemOperand(result, Cell::kValueOffset));
-      __ Cmp(result, Operand(Smi::FromInt(Isolate::kArrayProtectorValid)));
+      __ Cmp(result, Operand(Smi::FromInt(Isolate::kProtectorValid)));
       DeoptimizeIf(ne, instr, DeoptimizeReason::kHole);
     }
     __ LoadRoot(result, Heap::kUndefinedValueRootIndex);