lib Update Request for 'Symbols as WeakMap keys'

Configuration Check

My compilation target is ESNext and my lib is the default.

Missing / Incorrect Definition

Symbols as WeakMap keys went to stage 4 at TC39 yesterday.
The types for WeakMap, WeakSet, WeakRef and FinalizationRegistry can be updated to reflect that symbol is now also allowed alongside the existing object constraint.

Sample Code

new WeakMap<symbol, any>();
new WeakSet<symbol>();
new WeakRef(Symbol());
new FinalizationRegistry(() => {}).register(Symbol());

Documentation Link

https://github.com/tc39/proposal-symbols-as-weakmap-keys