Identified with llvm-use-ranges.

closes #154331 

This PR addresses all minimum changes needed to compile LLVM and MLIR
with the c++23 standard.
It is a work in progress and to be reviewed for better methods of
handling the parts of the build broken by c++23.

This fixes "unused-local-typedef" warnings in 9324e6a7a5.

This adds an option `--remove-note=[name/]type` to selectively delete
notes in ELF files, where `type` is the numeric value of the note type
and `name` is the name of the originator. The name can be omitted, in
which case all notes of the specified type will be removed. For now,
only `SHT_NOTE` sections that are not associated with segments are
handled. The implementation can be extended later as needed.

RFC: https://discourse.llvm.org/t/rfc-llvm-objcopy-feature-for-editing-notes/83491

This reverts commit 9324e6a7a5c5adc5b5c38c3e3cbecd7e1e98876a.

This adds an option `--remove-note=[name/]type` to selectively delete
notes in ELF files, where `type` is the numeric value of the note type
and `name` is the name of the originator. The name can be omitted, in
which case all notes of the specified type will be removed. For now,
only `SHT_NOTE` sections that are not associated with segments are
handled. The implementation can be extended later as needed.


RFC: https://discourse.llvm.org/t/rfc-llvm-objcopy-feature-for-editing-notes/83491

Identified with misc-include-cleaner.

Otherwise, llvm-objcopy fails with use-after-free when built under
sanitizers. Simple repro: run the test
`ELF/remove-section-in-group.test` under asan. This is due to symbol
table references to empty section groups that must be removed.

This reverts commit 359c64f314ad568e78ee9a3723260286e3425c2d.

This caused heap-use-after-free. See #98106.

Currently `llvm-objcopy/llvm-strip` in `--strip-debug` mode doesn't
remove such sections. This behavior can lead to incompatibilities with
GNU binutils (for examples ld.bfd before https://sourceware.org/PR20520
cannot process the object file contains empty .group section).
The ELF object that contains group section with `.debug_*` sections
inside can be obtained by `gcc -g3`.
Fix #97139