Fix miscompilation when calling default methods on Future
#111354
Merged
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In #111264 I discovered a lingering miscompilation when calling a default method on
Future
(none currently exist). #111279 added a debug assertion, which sadly doesn't help much since to my knowledge stage0 is not built with them enabled, and it still doesn't make default methods work like they should.This PR fixes
resolve_instance
to resolve default methods onFuture
correctly, allowing library contributors to addFuture
combinators without running into ICEs or miscompilations. I've tested this as part of #111347, but no test is included here (assuming that future methods include their own tests that would cover this sufficiently).r? @compiler-errors