[DAS] Adds new fix for importing multiple names in combinantors

[email protected]

Fixes #56608

Change-Id: I3f48517b927aeaa3c410b6f04fcf75b3beead923
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399021
Reviewed-by: Phil Quitslund <[email protected]>
Auto-Submit: Felipe Morschel <[email protected]>
Commit-Queue: Ivan Inozemtsev <[email protected]>
Reviewed-by: Samuel Rawlins <[email protected]>

Author: FMorschel