f910a7575f
- fixes check_nnbd_sdk.dart to run on dart2js patch files - splits golden file used by that script by target - adds it to the old-rti bot (until we get the new nnbd bot) - adds a suite that runs legacy tests in nnbd weak mode Change-Id: I0a89534dcd1cf7338849d59ab3e5d989d2ecf3d0 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/131885 Reviewed-by: Vijay Menon <vsm@google.com>