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This aligns TypeScript with a number of normative updates to the Explicit Resource Management proposal, per #58622:
[Symbol.dispose]()
methods are wrapped in a closure when used in anawait using
declaration.Promise
-like values returned by[Symbol.dispose]()
are ignored in anawait using
declaration.[Symbol.dispose]()
in anawait using
declaration are turned into rejections.See microsoft/tslib#258 for the companion PR for
tslib
.Fixes #58077
Fixes #58622