Rollup of 10 pull requests#59487

Merged

bors merged 29 commits intorust-lang:masterfrom

Mar 29, 2019

Commits on Feb 25, 2019

Add FromStr impl for NonZero types
hellow554
committed

Commits on Feb 27, 2019

replaced nonzeroparseerror with regular interror
hellow554
committed

Commits on Feb 28, 2019

Commits on Mar 16, 2019

Add def getting methods to librustc/ty/context
Tomas Koutsky
committed

Commits on Mar 19, 2019

rustc: Update linker flavor inference from filename
alexcrichton
committed

Commits on Mar 20, 2019

rustc: Allow using `clang` for wasm32 targets
alexcrichton
committed

Commits on Mar 22, 2019

ffi: rename VaList::copy to VaList::with_copy
dlrobertson
committed

Commits on Mar 23, 2019

Fixes #59361
peterjoel
committed

Commits on Mar 24, 2019

Add a way to track Rustfix UI test coverage
phansch
committed

Commits on Mar 26, 2019

Commits on Mar 28, 2019