[Support] Use an inherited constructor in DOTGraphTraits (NFC)#164056

kazutakahirata merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

kazutakahirata:cleanup_20251017_Support_DOTGraphTraitskazutakahirata/llvm-project:cleanup_20251017_Support_DOTGraphTraitsCopy head branch name to clipboard