bors d49b730157 Auto merge of #43857 - michaelwoerister:fix-impl-trait-closure-vis, r=eddyb
Mark closures return via impl-trait as reachable.

This should fix some of the open `impl trait` issues, like #40839, #43135, and #35870.

r? @eddyb
2017-08-14 11:28:12 +00:00
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