[DebugInfo] Avoid repeated map lookups (NFC)#128826

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

kazutakahirata:cleanup_001_repeated_hash_lookups_llvm_DebugInfokazutakahirata/llvm-project:cleanup_001_repeated_hash_lookups_llvm_DebugInfoCopy head branch name to clipboard