Rollup of 5 pull requests#43538

Closed

frewsxcv wants to merge 10 commits intorust-lang:masterfrom

frewsxcv:rollup

Commits on Jul 24, 2017

doc: make into_iter example more concise
tshepang
committed

Commits on Jul 27, 2017

Commits on Jul 28, 2017

Add Span to ast::WhereClause
topecongiro
committed