e51623f81a
Adds errors for class members that have a @JS annotation but the enclosing class does not. Change-Id: Id693af71678510047a723863846d89aa29cebe26 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157004 Reviewed-by: Nate Bosch <nbosch@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>