Auto merge of #124993 - jieyouxu:rollup-u02aso7, r=jieyouxu

Rollup of 5 pull requests

Successful merges:

 - #124233 (Add `-lmingwex` second time in `mingw_libs`)
 - #124318 (ignore generics args in attribute paths)
 - #124899 (bootstrap: add comments for the automatic dry run)
 - #124904 (reachable computation: extend explanation of what this does, and why)
 - #124930 (Make sure we consume a generic arg when checking mistyped turbofish)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors