rustc-ap-rustc_errors 590.0.0

Automatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit a6946a817a1345ce739acd8b12255c0a595e9b39 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish

Diagnostics creation and emission for rustc.

This module contains the code for creating and emitting diagnostics.