Auto merge of #84440 - Dylan-DPC:rollup-0xjb8oi, r=Dylan-DPC

Auto merge of #84440 - Dylan-DPC:rollup-0xjb8oi, r=Dylan-DPC

Rollup of 7 pull requests

Successful merges:

 - #84343 (Remove `ScopeTree::closure_tree`)
 - #84376 (Uses flex to fix formatting of h1 at any width)
 - #84377 (Followup to #83944)
 - #84396 (Update LLVM submodule)
 - #84402 (Move `sys_common::rwlock::StaticRWLock` etc. to `sys::unix::rwlock`)
 - #84404 (Check for intrinsics before coercing to a function pointer)
 - #84413 (Remove `sys::args::Args::inner_debug` and use `Debug` instead)

Failed merges:

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