Auto merge of #89016 - lcnr:non_blanket_impls, r=nikomatsakis,michaelwoerister

fix non_blanket_impls iteration order

We sometimes iterate over all `non_blanket_impls`, not sure if this is observable outside
of error messages (i.e. as incremental bugs). This should fix the underlying issue of #86986.

second attempt of #88718

r? `@nikomatsakis`

diff --cc compiler/rustc_metadata/src/dependency_format.rs
Simple merge

diff --cc compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs
Simple merge