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Use PredicateObligations instead of Predicates

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Keep more information about trait binding failures.
This commit is contained in:
Esteban Küber 2020-03-03 15:07:04 -08:00
parent 485c5fb6e1
commit bd7ea5441e
90 changed files with 280 additions and 141 deletions
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2
src/test/ui/closures/closure-bounds-cant-promote-superkind-in-struct.stderr
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@ -2,7 +2,7 @@ error[E0277]: `F` cannot be sent between threads safely
--> $DIR/closure-bounds-cant-promote-superkind-in-struct.rs:5:22
|
LL | struct X<F> where F: FnOnce() + 'static + Send {
| ---------------------------------------------- required by `X`
| - ---- required by this bound in `X`
...
LL | fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static {
| ^^^^ `F` cannot be sent between threads safely