Rollup merge of #152278 - lapla-cogito:type_const_nested, r=BoxyUwU Fix const normalization for generic const items with trait assoc consts In `try_fold_free_or_assoc`, the check for whether the normalization result needs further normalization only considered types, not constants. This caused generic const items marked with `#[type_const]` that reference trait associated consts to only partially normalize—the outer const would be expanded, but the inner associated const would remain unevaluated, resulting in an ICE in borrowck. close rust-lang/rust#151647 r? BoxyUwU (Based on git blame)
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