Ensure newly allocated empty Arrays are transitioned to FAST_ELEMENT

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 99a0bb08d29be6f9a4f80cd244e623dea297f3c8..740c5cebd44352f9a2bee14b7d24dc62b4487c00 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -1623,6 +1623,11 @@ void FixedArray::set(int index, Object* value) {
 }
 
 
+bool FixedArray::is_the_hole(int index) {
+  return get(index)->IsTheHole();
+}
+
+
 inline bool FixedDoubleArray::is_the_hole_nan(double value) {
   return BitCast<uint64_t, double>(value) == kHoleNanInt64;
 }