[llvm] [NFC] DWARFVerifier: use C-style array instead of brace-enclosed init list (PR #167328)

[Felipe de Azevedo Piovezan via llvm-commits]

felipepiovezan wrote:

What was the warning that you were seeing here? I a surprised no other compilers emit it.

https://github.com/llvm/llvm-project/pull/167328