Turns out we'll sometimes be given the script uri as a package uri,
so we have to support that.
To further complicate things we're not necessarily given a package
config to translate from so we need to use the kernel component as a
backup.
Change-Id: I06ceb136b0b03164aaf7412d5332ae9c4c3338c4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447220
Reviewed-by: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Jens Johansen
e9a99cd479