rustc-ap-rustc_errors 499.0.0

Automatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit 0dc9e9c10ca6dc78cba8b9f9b15038c977b10a77 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.