[llvm] Add overload of DIBuilder::createArrayType (PR #125229)

[Tom Tromey via llvm-commits]

tromey wrote:

@dwblaikie I looked in llvm/Maintainers.md and you were listed in the "Debug info and DWARF" with the note "especially type information", so I'm taking the liberty of CCing you.

The bot didn't add the "debuginfo" tag to this patch for whatever reason.

https://github.com/llvm/llvm-project/pull/125229