Option to show list of only filenames in search results

[OnkarRuikar]

It would be nice if we can get list of only file names with number of matches.
The list can be easily shared in issue/bug discussions or over emails. For example, mdn/content#15872 (comment)
The list can be used to easily assign tasks, like update documents containing certain outdated terms/methods.

Something like this:

[dsumac]

We have the same need in our organization.

Examples:

• get all files / projects concerned by a dependency