[llvm] [AsmParser] Don't require value numbers to be consecutive (PR #78171)

[Nikita Popov via llvm-commits]

nikic wrote:

> Side note: the duplicate argument parsing in `parseArgumentList` is really awkward.

Agreed. I've pushed https://github.com/llvm/llvm-project/commit/0f20d5a8b10b98c83c73b6b7808b7bf88aaaaa2e to deduplicate this.

https://github.com/llvm/llvm-project/pull/78171