This CL adjusts the CFE handling of errors such that error_test.dart
succeeds: It changes the placement of the error about "wrong parameter
type" such that it is reported on the type annotation and not on the
parameter's name. Next, it adds some extra checks such that it is
enforced that the parameter of an anonymous method must be positional
and mandatory.
Change-Id: I56851d94c9fd975e117c17f671d684f155a28847
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/498021
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Erik Ernst
5ecbd3acc2