[5.4] Fix a Family of Crashers in Availability Checking #36104
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NIO exposed an issue in the new availability walkers where an implicit check was not being performed. They were able to get this to crash by using a defer statement - the body of which contains implicit declarations that got run through the walker. This exposed a wider hole in availability checking of defer statements. Namely, that it wasn't happening. Let's dilute the meaning of `isImplicit` in the availability walkers to account for this desugaring. rdar://74484150
slavapestov
approved these changes
Feb 23, 2021
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@swift-ci test |
tkremenek
approved these changes
Feb 23, 2021
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The 5.4 copy of #36102