Optimize the typeof operator.

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index af4a6d647d9f3e2d54900a6c863078ab16368888..aee9ddf40329c911a6ab51cb33111d1109d799f4 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -4482,10 +4482,12 @@ void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
     case Token::TYPEOF: {
       Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)");
       {
-        StackValueContext context(this);
+        AccumulatorValueContext context(this);
         VisitForTypeofValue(expr->expression());
       }
-      __ CallRuntime(Runtime::kTypeof, 1);
+      __ Mov(x3, x0);
+      TypeofStub typeof_stub(isolate());
+      __ CallStub(&typeof_stub);
       context()->Plug(x0);
       break;
     }