bcoe 8fa90358d7 module: refactor to use iterable-weak-map ...

Using an iterable WeakMap (a data-structure that uses WeakRef and
WeakMap), we are able to: stop relying on Module._cache to
serialize source maps; stop requiring an error object when calling
findSourceMap().

PR-URL: https://github.com/nodejs/node/pull/35915
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

2020-11-06 12:47:23 -08:00

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