[ADT] Remove ArrayRef(std::nullopt_t)#165831

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

kazutakahirata:cleanup_20251030_ADT_ArrayRef_nulloptkazutakahirata/llvm-project:cleanup_20251030_ADT_ArrayRef_nulloptCopy head branch name to clipboard