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Auto merge of #89862 - lcnr:path-generics-diagnostics, r=estebank

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rewrite error handling for unresolved inference vars

Pretty much completely rewrites `fn emit_inference_failure_err`.

This new setup should hopefully be easier to extend and is already a lot better when looking for generic arguments.
Because this is a rewrite there are still some parts which are lacking, these are tracked in #94483 and will be fixed in later PRs.

r? `@estebank` `@petrochenkov`
This commit is contained in:
bors 2022-06-03 12:37:16 +00:00
commit e40d5e83dc
124 changed files with 2139 additions and 1488 deletions
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1731
compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
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1
compiler/rustc_infer/src/lib.rs
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@ -22,6 +22,7 @@
#![feature(let_else)]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(try_blocks)]
#![recursion_limit = "512"] // For rustdoc
#[macro_use]