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Auto merge of #90329 - nbdd0121:typeck, r=nagisa

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Try all stable method candidates first before trying unstable ones

Currently we try methods in this order in each step:
* Stable by value
* Unstable by value
* Stable autoref
* Unstable autoref
* ...

This PR changes it to first try pick methods without any unstable candidates, and if none is found, try again to pick unstable ones.

Fix #90320
CC #88971, hopefully would allow us to rename the "unstable_*" methods for integer impls back.

`@rustbot` label T-compiler T-libs-api
This commit is contained in:
bors 2021-11-19 03:00:46 +00:00
commit ce3f3a5ffa
7 changed files with 191 additions and 27 deletions
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compiler/rustc_interface/src/tests.rs
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@ -752,6 +752,7 @@ fn test_debugging_options_tracking_hash() {
tracked!(panic_abort_tests, true);
tracked!(panic_in_drop, PanicStrategy::Abort);
tracked!(partially_uninit_const_threshold, Some(123));
tracked!(pick_stable_methods_before_any_unstable, false);
tracked!(plt, Some(true));
tracked!(polonius, true);
tracked!(precise_enum_drop_elaboration, false);