Highlight also the filename with red or yellow

[felipelalli]

In VSCode, the default setting highlights a file name in yellow if there's a warning, and in red if there's an error, as demonstrated in the image below:

It would be quite handy if, for instance, using // TODO: would turn the file name yellow as well, indicating there's a TODO item without the need to open the file. Similarly, using // FIXME: could turn the file red. Alternatively, we could use different colors, such as blue and orange, to distinguish these markers from actual compile warnings and errors. I believe the colors for actual warnings and errors should take precedence over those for TODO / FIXME markers.

This feature could be enabled by default, with the option to disable it in the settings.