Auto merge of #119556 - onur-ozkan:optimized-compiler-builtins, r=onu…

…r-ozkan

Reland optimized-compiler-builtins config

Copy of #102579 PR.

From #102579:

> No concerns on my side. Currently, Jyn isn't actively working on the project. I will close this PR; open another one to cherry-pick the commits, resolve conflicts, and then r+ it.

> Fixes rust-lang/rust#102560. Fixes rust-lang/rust#101172. Helps with rust-lang/rust#105065 (although there's some weirdness there - it's still broken when optimized-compiler-builtins is set to true).

Fixes rust-lang/rust#102560. Fixes rust-lang/rust#101172. Helps with rust-lang/rust#105065

r? ghost