Rollup of 12 pull requests

[matthiaskrgr]

Successful merges:

• stabilise array methods #103522 (stabilise array methods)
• impl From<&[T; N]> for Cow<[T]> #113489 (impl From<&[T; N]> for Cow<[T]>)
• Emit suggestion when trying to write exclusive ranges as ..< #119342 (Emit suggestion when trying to write exclusive ranges as ..<)
• Rename pointer field on Pin #119562 (Rename pointer field on Pin)
• Document rustc_index::vec::IndexVec #119800 (Document rustc_index::vec::IndexVec)
• std: make HEAP initializer never inline #120205 (std: make HEAP initializer never inline)
• Normalize field types before checking validity #120277 (Normalize field types before checking validity)
• core: add From<core::ascii::Char> implementations #120311 (core: add From<core::ascii::Char> implementations)
• mark a doctest with UB as no_run #120366 (mark a doctest with UB as no_run)
• always normalize LoweredTy in the new solver #120378 (always normalize LoweredTy in the new solver)
• Classify closure arguments in refutable pattern in argument error #120382 (Classify closure arguments in refutable pattern in argument error)
• Add fmease to the compiler review rotation #120389 (Add fmease to the compiler review rotation)

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