Matthew Jasper 2a3969a3f7 Use new region infer errors for explaining borrows
This gives at least some explanation for why a borrow is expected to
last for a certain free region. Also:

* Reports E0373: "closure may outlive the current function" with NLL.
* Special cases the case of returning a reference to (or value
  referencing) a local variable or temporary (E0515).
* Special case assigning a reference to a local variable in a closure
  to a captured variable.
2018-10-21 12:35:00 +01:00
..
2018-10-17 22:57:38 +02:00