From: Mark Simulacrum <mark.simulacrum@gmail.com>
Date: Tue, 16 May 2017 23:31:50 +0000 (-0600)
Subject: Rollup merge of #42017 - nikomatsakis:issue-41677, r=arielb1
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=52abafa464178a513f017876e13b7789adf39402;p=rust.git

Rollup merge of #42017 - nikomatsakis:issue-41677, r=arielb1

avoid cycles in mir-dump, take 2

This fixes #41697, for real this time, but I'm not sure how best to add a regression test. I was considering maybe adding some flag so that the MIR dumping doesn't actually get written to files (e.g., overloading the directory flag so you can specify nil or something).

cc @dwrensha @oli-obk
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52abafa464178a513f017876e13b7789adf39402