[llvm] Fix size in bytes of type DIEs when size in bits is not a multiple of 8 (PR #69741)

[David Blaikie via llvm-commits]

dwblaikie wrote:

Please include a test case (& perhaps soem motivation - are there any targets that actually have non-byte-size types? Perhaps we should disallow that in the verifier instead?)

https://github.com/llvm/llvm-project/pull/69741