[clang] [clang-format] Allow array alignment on non-rectangular arrays (PR #143781)

[Ben Dunkin via cfe-commits]

bdunkin wrote:

I will test my changes against those issues and see what happens. I would very much like to keep this feature, and am willing to spend some time to make it right. The issue of not changing existing tests still seems unresolved though. What happens if fixing some of those issues breaks existing the tests?

https://github.com/llvm/llvm-project/pull/143781