Doug Gregor 1b937366cf [Trailing closures] Reinstate the "skip defaulted argument" heuristic. ...

My experiment to improve source compatibility by also performing a
backward scan removed the SE-0286 heuristic that skipped binding
the unlabeled trailing closure to a defaulted parameter when that
would fail. Reinstate that heuristic, which makes more existing code
work with the forward-scan behavior.

This makes my source-compatibility improvements a quality-of-implementation

2020-07-24 08:11:25 -07:00

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