[llvm] Aggregate errors from llvm-dwarfutil --verify (PR #79648)

[David Blaikie via llvm-commits]

https://github.com/dwblaikie commented:

General idea I'm more or less OK with (though, like, clang/compilers in general don't have this sort of feature - so I'm not sure it's especially strongly motivated for DWARF either) - though it starts to look more like compiler diagnostics, with diagnostic groups & at that point I wonder whether it should use syntax that's more similar to the way compiler diagnostics and diagnostic groups are rendered - and maybe even share some implementation (well, layering might be difficult there, llvm can't depend on clang - but maybe some of the diagnostics stuff got refactored out to be used by flang and so might be in some usable place... )

https://github.com/llvm/llvm-project/pull/79648