Move some validation logic out of a loop; remove Tuple2 use (#3005)
Move some validation logic out of a loop; remove Tuple2 use (#3005)


keertip/dartdoc,keertip/dartdoc,dart-lang/dartdoc,keertip/dartdoc,dart-lang/dartdoc,keertip/dartdoc,dart-lang/dartdoc,dart-lang/dartdoc