Rollup merge of #45895 - arielb1:inline-debug, r=eddyb
Rollup merge of #45895 - arielb1:inline-debug, r=eddyb

add a bunch of debug logging to MIR inlining

r? @eddyb

@bors rollup

aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,aidancully/rust,aidancully/rust,GBGamer/rust,aidancully/rust,graydon/rust,graydon/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,graydon/rust