Manish Goregaokar 3f11d39eec
Rollup merge of #103464 - JakobDegen:mir-parsing, r=oli-obk
Add support for custom mir

This implements rust-lang/compiler-team#564 . Details about the design, motivation, etc. can be found in there.

r? ```@oli-obk```
2022-11-09 15:39:03 -05:00
..
2022-09-29 16:49:04 +09:00