Fix TransitionElementsKindStub to handle non-JSArray objects correctly.

src/a64/lithium-codegen-a64.cc

Index: src/a64/lithium-codegen-a64.cc
diff --git a/src/a64/lithium-codegen-a64.cc b/src/a64/lithium-codegen-a64.cc
index 0bb420cf590a83f799d0225af6866643f9aa32ab..c222f49fd769c32d1a1669c3448fb6e7fb9b754c 100644
--- a/src/a64/lithium-codegen-a64.cc
+++ b/src/a64/lithium-codegen-a64.cc
@@ -5630,7 +5630,8 @@ void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) {
         this, Safepoint::kWithRegistersAndDoubles);
     __ Mov(x0, object);
     __ Mov(x1, Operand(to_map));
-    TransitionElementsKindStub stub(from_kind, to_kind);
+    bool is_js_array = from_map->instance_type() == JS_ARRAY_TYPE;
+    TransitionElementsKindStub stub(from_kind, to_kind, is_js_array);
     __ CallStub(&stub);
     RecordSafepointWithRegistersAndDoubles(
         instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);