[llvm] [LLVM][DWARF] Add support for monolithic types in .debug_names (PR #68131)

[David Blaikie via llvm-commits]

dwblaikie wrote:

(not sure where it was recorded - maybe just in-person at LLVM dev)

@ayermolo did manage to find some data showing maybe a 10% memory regression for an IR->object compilation (where the backend memory usage isn't overshadowed by the frontend's peak) & I think is looking into it.

https://github.com/llvm/llvm-project/pull/68131