In a package foo.bar.baz with the message SomeMessage, the message type can be referenced locally as SomeMessage or as the fully qualified foo.bar.baz.SomeMessage. Support the latter form as well, and add tests. Fixes #4035. Closes #4036 as merged as of commit a018b523. Signed-off-by: Julian Early <julian@chalk.ai> Change-Id: I90c32e35212ca57795abf3b93a8a62e61a069954 Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1221581 TryBot-Result: CUEcueckoo <cueckoo@cuelang.org> Reviewed-by: Matthew Sackman <matthew@cue.works> Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>