08c77a6eb4
"no method" errors on standard library types
The standard library developer can annotate methods on e.g.
`BTreeSet::push` with `#[rustc_confusables("insert")]`. When the user
mistypes `btreeset.push()`, `BTreeSet::insert` will be suggested if
there are no other candidates to suggest.
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|---|---|---|
| .. | ||
| builtin.rs | ||
| lib.rs | ||
| session_diagnostics.rs | ||