Unrolled build for rust-lang#139948

Rollup merge of rust-lang#139948 - jieyouxu:ignore-breakup-commit, r=onur-ozkan

git: ignore `60600a6fa403216bfd66e04f948b1822f6450af7` for blame purposes

60600a6 was simply breaking up compiletest's `runtest.rs` and isn't very useful in git blame.

r? `@onur-ozkan`

Author: rust-timer

.git-blame-ignore-revs

@@ -31,3 +31,5 @@ ec2cc761bc7067712ecc7734502f703fe3b024c8
 c682aa162b0d41e21cc6748f4fecfe01efb69d1f
 # reformat with updated edition 2024
 1fcae03369abb4c2cc180cd5a49e1f4440a81300
+# Breaking up of compiletest runtest.rs
+60600a6fa403216bfd66e04f948b1822f6450af7