As the feature-request Show the post's comments on the “Suggested Edits” review interface elaborates on, some suggested edits seem too radical without the context of comments they are based on.
I fully endorse this request and would like to take it one step further:
Add the option to "suggest* edit based on this comment" next to comments, which would specifically highlight that comment below the suggested edit, such that edits that otherwise would be deemed "too radical" at first sight can be put into a better context. On approval, said comment would also become linked-to by the revision comment.
Since it makes sense to upvote such a comment due to it providing information justifying an edit, that link could replace the flagging-flag (which is anyway hidden after an upvote) with the edit-pen that indicate edited comments, like so:
In fact, for the editor's convenience, the clicked-on base-comment might also be added to the bottom of the post and preselected (e.g. for one-key deletion or conversion to a quote)
* The "suggest" would not be shown for users with the required edit privilege (<2k rep or OP), yet this option would allow to link an edit to a helpful comment and include aforementioned preselect-insertion of the comment at the post's bottom for convenience