Get merge request review information through API

Problem to solve

We need to be able to get merge request review information through the GitLab API.

Intended users

Developers on projects that use GitLab.

Further details

For our use case, we need to be able to get the number of merge request review comments through the API for automating metric reports. GitLab currently only lets you get the Discussion comments (also called "notes" by GitLab). This is NOT the same as the review comments, which is currently not retrievable through the API.

Proposal

Add merge request review API capability. For example: "GET /projects/:id/merge_requests/:iid/reviews"

Links / references