[llvm] [llvm-debuginfo-analyzer] Add support for DWARF `DW_AT_byte_size` (PR #139110)

[Javier Lopez-Gomez via llvm-commits]

jalopezg-git wrote:

@jmorse, @SLTozer, @OCHyams, this is also ready to merge.  Do you have any additional comments that you would like to see applied before merging?

For the moment, I do not have write access to the repository, so someone would have to do the merge for me :slightly_smiling_face:.

https://github.com/llvm/llvm-project/pull/139110