Auto merge of #60377 - Centril:rollup-42fxe9u, r=Centril

Rollup of 9 pull requests

Successful merges:

 - #59946 (Fix equivalent string in escape_default docs)
 - #60256 (Option::flatten)
 - #60305 (hir: remove LoweredNodeId)
 - #60334 (Stabilized vectored IO)
 - #60353 (Add test not to forget resolved ICE)
 - #60356 (Stabilize str::as_mut_ptr)
 - #60358 (Clarify the short explanation of E0207)
 - #60359 (resolve: Consider erroneous imports used to avoid duplicate diagnostics)
 - #60360 (Add test case for labeled break in const assignment)

Failed merges:

r? @ghost