Rollup of 12 pull requests#30457

Merged

bors merged 21 commits into

rust-lang:masterfrom

Manishearth:rollup

Dec 18, 2015

Commits on Dec 15, 2015

Fix typo
jwworth
committed

Commits on Dec 16, 2015

change macro ambiguity example from ty to ident
durka
committed
move error handling from libsyntax/diagnostics.rs to libsyntax/errors/*
Nick Cameron
committed
Move a bunch of stuff from Session to syntax::errors
Nick Cameron
committed
Add the files I fogot about earlier
Nick Cameron
committed
A little more refactoring inside emitter.rs
Nick Cameron
committed
test errors
Nick Cameron
committed

Commits on Dec 18, 2015