[Integrated] RFR: Support review comments on deleted parts of files on GitLab

[Robin Westberg]

Changeset: 06a1bcfe
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-10-29 06:58:51 +0000
URL:       https://git.openjdk.java.net/skara/commit/06a1bcfe

Support review comments on deleted parts of files on GitLab

Reviewed-by: ehelin

! forge/src/main/java/org/openjdk/skara/forge/gitlab/GitLabMergeRequest.java