rustc-ap-rustc_errors 657.0.0

Automatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit 04689e22e946879f2f5e2c73849d2f4e1f2b4b32 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.