defspec does not set property :name properly

If one uses trial-report-periodic, output like this is produced:

This can get very unwieldy for specs defined within `defspec` forms. The same "representation" of specs is used in reporting shrinking, which isn't very helpful if you're trying to track down a problem. What we want (and what I'm sure I meant to write (the blame is tricky b/c of the renames for cljc'ing, but I think this one's on me originally) is something like:

Patch attached to do this.