bors 5095101528 Auto merge of #67752 - Dylan-DPC:rollup-7f9v4nx, r=Dylan-DPC
Rollup of 5 pull requests

Successful merges:

 - #67430 (doc: minus (U+2212) instead of dash (U+002D) for negative infinity)
 - #67697 (Move the region_scope_tree query to librustc_passes.)
 - #67719 (Add self to .mailmap)
 - #67723 (Add error code explanation for E0477)
 - #67735 (Support `-Z ui-testing=yes/no`)

Failed merges:

r? @ghost
2019-12-31 12:58:10 +00:00
..
2019-12-29 19:16:53 -08:00