Revert "Revert "Remove dependency on package:charcode (dart-lang/string_scanner#29)" (dart-lang/string_scanner#33)" (dart-lang/string_scanner#36)

This reverts commit 4bbbff29df9d12317b1c42eb089e60571b7c3742.
8 files changed
tree: 630dd9f9541df445f763e4174826fa085c5c50e8
  1. pkgs/