| Index: lib/runtime/dart_utils.js
|
| diff --git a/lib/runtime/dart_utils.js b/lib/runtime/dart_utils.js
|
| index 70555c729187a9577eebf25ccaff6bb7a202332b..a1c2bf9762b48b8a6ebae02a67a503018c3b7306 100644
|
| --- a/lib/runtime/dart_utils.js
|
| +++ b/lib/runtime/dart_utils.js
|
| @@ -113,7 +113,7 @@ var dart_utils =
|
| show = getOwnNamesAndSymbols(from);
|
| }
|
| if (hide != void 0) {
|
| - var hideMap = new Map(hide);
|
| + var hideMap = new Set(hide);
|
| show = show.filter((k) => !hideMap.has(k));
|
| }
|
| return copyTheseProperties(to, from, show);
|
|
|