[llvm] [llvm-debuginfo-analyzer] Add support for WebAssembly binary format. (PR #82588)

[Carlos Alberto Enciso via llvm-commits]

CarlosAlbertoEnciso wrote:

> Does this mean this whole file will be renamed, or only the wasm-related parts will be spun off as a new file?

The plans are to prepare a separate NFC patch with the following changes:
Filename change: `LVElfReader.cpp[h]` -> `LVDWARFReader.cpp[h]`
Class name change: `LVELFReader` -> `LVDWARFReader`

The names will reflect the Debug Information format being processed (DWARF) and not the binary format (ELF, MachO and Wasm).

> The comment looks like the whole file/class will be renamed.. Then does this class not support ELF anymore?

It will support ELF.

> The file heading says it supports ELF/MachO. (Should we update that too?)

For the time being, we can change the file heading to say something like:

```
// This implements the LVELFReader class.
// It supports ELF, Mach-O and Wasm binary formats.

```


https://github.com/llvm/llvm-project/pull/82588