Rollup of 8 pull requests#64626

Closed

Centril wants to merge 24 commits intorust-lang:masterfrom

Centril:rollup-elbvzz0

Commits on Sep 12, 2019

Filter out stmts made for the redundant_semicolon lint when pretty-printing
nathanwhit
committed
Add test for redundant_semicolon lint interaction with proc macro attrs
nathanwhit
committed

Commits on Sep 16, 2019

Document `From` trait for `LhsExpr`
crgl
committed

Commits on Sep 19, 2019

Commits on Sep 20, 2019