Account for binders correctly when adding default RPITIT method assumption #108583
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#108460 (migrate `rustc_hir_analysis` to session diagnostic [Part Two]) - rust-lang#108581 (Add a new config flag, dist.include-mingw-linker.) - rust-lang#108583 (Account for binders correctly when adding default RPITIT method assumption) - rust-lang#108783 (Sync rustc_codegen_gcc 2023/03/04) - rust-lang#108793 (Append to existing `PYTHONPATH` in compiletest instead of overwriting) - rust-lang#108822 (Remove references to PassManagerBuilder) - rust-lang#108866 (Force to use the stage 2 compiler when config.download_rustc is set) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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As of #108203, we install extra projection predicates into the param-env of a default trait method when it has return-position
impl Trait(or is async).The implementation didn't account for the fact that it's walking into and out of binders, so we just need to shift all the debruijn indices accordingly when constructing the projection predicates.
Fixes #108579
r? types