Marking functions with associated specs

[olivergeorge]

I'd like to know which of my functions have a (s/fdef ...) spec associated with them so that I'm encouraged to add ones which are missing.

A simple visual indication would be enough to be useful.

[danielcompton]

Also, when an fdef is added to a function, it marks the function as being used, even if nothing else in the project references it.

[danielcompton]

One more thing I noticed with fdef, it is valid (and maybe even better style, ala core.typed) to have it declared above a function, but Cursive shows a not resolved warning if you do it this way.