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a9cd294cf2
Auto merge of #77720 - matthewjasper:fix-trait-ices, r=nikomatsakis ...
Fix trait solving ICEs
- Selection candidates that are known to be applicable are preferred
over candidates that are not.
- Don't ICE if a projection/object candidate is no longer applicable
(this can happen due to cycles in normalization)
- Normalize supertraits when finding trait object candidates
Closes #77653
Closes #77656
r? `@nikomatsakis`
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a9cd294cf2