Rollup of 3 pull requests - #71851

Closed

Dylan-DPC-zz wants to merge 13 commits into

rust-lang:masterfrom

Dylan-DPC-zz:rollup-whu3jnh

Commits on Apr 26, 2020

Add `RefCell::take`
ThinkChaos
committed
f121f09
Use Cell::take in a couple places
ThinkChaos
committed
4ea83bf

Commits on May 2, 2020

Suggest deref when coercing `ty::Ref` to `ty::RawPtr` with arbitrary
ldm0
committed
60d62be
Add comments for deref_steps()
ldm0
committed
80d04cc
Suggestion for immutable reference -> mutable pointer should be emitted
ldm0
committed
089d4bb
Replace convenient function `remove_prefix()` with `replace_prefix()`
ldm0
committed
9a212c1
Add long error explanation for E0539
unexge
committed
e4ee172
Add `#![feature(staged_api)]` attribute to E0539 error examples
unexge
committed
9536567
Add stability attribute to E0539 error examples
unexge
committed
ef813ca