Auto merge of #78399 - vn-ki:gsgdt-graphviz, r=oli-obk

make MIR graphviz generation use gsgdt

gsgdt [https://crates.io/crates/gsgdt] is a crate which provides an
interface for stringly typed graphs. It also provides generation of
graphviz dot format from said graph.

This is the first in a series of PRs on moving graphviz code out of rustc into normal crates and then implementating graph diffing on top of these crates.

r? `@oli-obk`
This commit is contained in:
bors 2020-12-15 22:00:02 +00:00
commit 39aca5ff9f

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@ -1,7 +1,6 @@
#![allow(clippy::useless_attribute)] //issue #2910
// edition:2018
#[macro_use]
extern crate serde_derive;
use serde::Deserialize;
/// Tests that we do not lint for unused underscores in a `MacroAttribute`
/// expansion