[beta] Rollup backports - #54750

Merged

bors merged 5 commits into

rust-lang:betafrom

emilyalbini:beta-backports

Oct 2, 2018

Commits on Oct 2, 2018

rustc_resolve: move extern_prelude from Resolver to Session.

eddyb
authored and
emilyalbini
committed
83b5f57
rustc_typeck: don't lint non-extern-prelude extern crate's in Rust 2018.

eddyb
authored and
emilyalbini
committed
d68a287
Use full name to identify a macro in a `FileName`.

orium
authored and
emilyalbini
committed
334c2e4
resolve: Do not block derive helper resolutions on single import resolutions

petrochenkov
authored and
emilyalbini
committed
13fdba0
Accept trailing comma in `cfg_attr`

petrochenkov
authored and
emilyalbini
committed
2280d59