#353 F3 does not work on module ports

[thomas0774]

If F3 (open declaration) is pressed on module port (input/output) instead of a variable, nothing happens.

Expected behavior: Jump to the port declartion.

[Matthew Ballance]

This will be corrected in 1.6.7. It turns out the Open Declaration search was being properly performed, but the module-port object didn't contain proper location information. Now it does.