Guillaume Gomez 06bb1ff1b5 Rollup merge of #90375 - yanok:master, r=lcnr ... Use `is_global` in `candidate_should_be_dropped_in_favor_of` This manifistated in #90195 with compiler being unable to keep one candidate for a trait impl, if where is a global impl and more than one trait bound in the where clause. Before #87280 `candidate_should_be_dropped_in_favor_of` was using `TypeFoldable::is_global()` that was enough to discard the two `ParamCandidate`s. But #87280 changed it to use `TypeFoldable::is_known_global()` instead, which is pessimistic, so now the compiler drops the global impl instead (because `is_known_global` is not sure) and then can't decide between the two `ParamCandidate`s. Switching it to use `is_global` again solves the issue. Fixes #90195.		2021-10-30 20:30:27 +02:00
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src	Rollup merge of #90375 - yanok:master, r=lcnr	2021-10-30 20:30:27 +02:00
Cargo.toml	Rollup merge of #89461 - crlf0710:dyn_upcasting_lint, r=nikomatsakis	2021-10-07 16:24:49 +02:00