For-of calls [Symbol.iterator]() on RHS to get iterator

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 ba3b5d086e6a515f24d7c8e012707dcd181eb9ea..b74a0583fd11de71a6ea6e9f7d59e3704ee1c889 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -1280,8 +1280,8 @@ void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) {
   Iteration loop_statement(this, stmt);
   increment_loop_depth();
 
-  // var iterator = iterable[@@iterator]()
-  VisitForAccumulatorValue(stmt->assign_iterator());
+  // var iterable = subject
+  VisitForAccumulatorValue(stmt->assign_iterable());
 
   // As with for-in, skip the loop if the iterator is null or undefined.
   Register iterator = x0;
@@ -1290,16 +1290,8 @@ void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) {
   __ JumpIfRoot(iterator, Heap::kNullValueRootIndex,
                 loop_statement.break_label());
 
-  // Convert the iterator to a JS object.
-  Label convert, done_convert;
-  __ JumpIfSmi(iterator, &convert);
-  __ CompareObjectType(iterator, x1, x1, FIRST_SPEC_OBJECT_TYPE);
-  __ B(ge, &done_convert);
-  __ Bind(&convert);
-  __ Push(iterator);
-  __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
-  __ Bind(&done_convert);
-  __ Push(iterator);
+  // var iterator = iterable[Symbol.iterator]();
+  VisitForEffect(stmt->assign_iterator());
 
   // Loop entry.
   __ Bind(loop_statement.continue_label());