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6f5c09849e
Fix handling of `hir::GenericArg::Infer` in `wrong_number_of_generic_args.rs`
Fixes #87563. More precisely, I have fixed the "index out of bounds" error, which is what #87563 is about. The example given there still ICEs due to running into this `todo!()`, but I'd say that this is a separate issue:
c3c0f80d60/compiler/rustc_typeck/src/astconv/mod.rs (L460-L463)
For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.