No Pythran signature generated for boosted functions without arguments

Created originally on Bitbucket by paugier (Pierre Augier)

cat bug_trans.py 

from transonic import boost

@boost
def func():
   return 1

cat __pythran__/bug_trans.py 
def func():
    return 1


# pythran export __transonic__
__transonic__ = ("0.2.3",)

‌

There should be a line with # pythran export func() !