35f45cf3f1
This prepares the compiler to accept a modular mode that contains several libraries as user-code locations Change-Id: I04f6c1fe36eea23de79b3573855896c560996fe1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98457 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Sigmund Cherem <sigmund@google.com>