[Support] Add "override" where appropriate (NFC)#164190

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

kazutakahirata:cleanup_20251019_tidy_modernize_use_overridekazutakahirata/llvm-project:cleanup_20251019_tidy_modernize_use_overrideCopy head branch name to clipboard