Fix cast that is disallowed by SE-0054. #1300
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SE-0054 (Abolish ImplicitlyUnwrappedOptionalType) substantially reduced the number of places that '!' can be used, but the implementation missed certain cases like this one. That implementation is being overhauled to catch all the illegal cases.
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@swift-ci Please test Linux platform |
parkera
approved these changes
Nov 6, 2017
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SE-0054 (Abolish ImplicitlyUnwrappedOptionalType) substantially reduced
the number of places that '!' can be used, but the implementation missed
certain cases like this one. That implementation is being overhauled to
catch all the illegal cases.