ElementsAccessor::SetLength() maybehandlified.

src/elements.h

Index: src/elements.h
diff --git a/src/elements.h b/src/elements.h
index 76b2b0ebfbbaed670c04499c74836edfdb36a5b4..ea06b6bc9fd47d4d841e150f9a19a824f3338c0b 100644
--- a/src/elements.h
+++ b/src/elements.h
@@ -145,7 +145,7 @@ class ElementsAccessor {
   // changing array sizes as defined in EcmaScript 5.1 15.4.5.2, i.e. array that
   // have non-deletable elements can only be shrunk to the size of highest
   // element that is non-deletable.
-  MUST_USE_RESULT virtual Handle<Object> SetLength(
+  MUST_USE_RESULT virtual MaybeHandle<Object> SetLength(
       Handle<JSArray> holder,
       Handle<Object> new_length) = 0;
 
@@ -257,8 +257,9 @@ class ElementsAccessor {
 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key,
                      bool allow_appending = false);
 
-Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array,
-                                                Arguments* args);
+MUST_USE_RESULT MaybeHandle<Object> ArrayConstructInitializeElements(
+    Handle<JSArray> array,
+    Arguments* args);
 
 } }  // namespace v8::internal