Rollup merge of #107100 - compiler-errors:issue-107087, r=lcnr

Use proper `InferCtxt` when probing for associated types in astconv

Fixes #107087

diff --cc compiler/rustc_hir_analysis/src/astconv/mod.rs
Simple merge

diff --cc compiler/rustc_hir_analysis/src/collect.rs
Simple merge

diff --cc compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs
Simple merge