Rollup of 9 pull requests#61258

Merged

bors merged 23 commits intorust-lang:masterfrom

Centril:rollup-l2mof9t

May 28, 2019

Commits on May 23, 2019

Commits on May 26, 2019

Added error message for E0284
imbrem
committed

Commits on May 27, 2019

Commits on May 28, 2019

Rollup merge of #61084 - blkerby:unreachable_doc, r=KodrAus
Centril
authored
Rollup merge of #61220 - imbrem:error_explanations, r=estebank
Centril
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Rollup merge of #61227 - diwic:patch-2, r=Centril
Centril
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Rollup merge of #61230 - matklad:ub-comment, r=RalfJung
Centril
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Rollup merge of #61237 - DevQps:expand-iterator-docs, r=Mark-Simulacrum
Centril
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Rollup merge of #61241 - spastorino:check-place-iterative, r=oli-obk
Centril
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Rollup merge of #61242 - spastorino:dest-needs-borrow-iterate, r=oli-obk
Centril
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Rollup merge of #61247 - spastorino:eval-place-iterate, r=wesleywiser
Centril
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Rollup merge of #61248 - spastorino:use-place-local-fn, r=oli-obk
Centril
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