https://github.com/tc39/ecma262/pull/2038
<rdar://problem/71580669>
The "Symbols as WeakMap keys" proposal achieved Stage 3 in the June 2022 TC39 meeting: https://github.com/tc39/notes/blob/main/meetings/2022-06/jun-07.md#symbols-as-weakmap-keys The V8 implementation can be seen here: https://chromium-review.googlesource.com/c/v8/v8/+/3865056
It is already implemented one month ago.
*** This bug has been marked as a duplicate of bug 243483 ***