rustc-ap-rustc_errors 591.0.0

Automatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit 8bf776d5c2fc88624d2562e493aab0d324a3b7d8 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.