Unconditionally set attribute docstrings
Unconditionally set attribute docstrings

As Statement.assignment_details triggers parsing inside
statement let's don't check assignment_details when setting
attribute docstrings.

jonashaag/jedi,jonashaag/jedi,dwillmer/jedi,WoLpH/jedi,tjwei/jedi,WoLpH/jedi,mfussenegger/jedi,flurischt/jedi,mfussenegger/jedi,dwillmer/jedi,flurischt/jedi,tjwei/jedi