[llvm] [BOLT][DWARF] Skip processing DWARF CUs with a DWO ID but no DWO name. (PR #154749)

[Alexander Yermolovich via llvm-commits]

ayermolo wrote:

Looks almost there. Left some minor nits.
Today is my last day at a current company, hopefully will be able to re-setup BOLT environment soon to continue other reviews.
Please work with @grigorypas and @maksfb to finish this.

https://github.com/llvm/llvm-project/pull/154749