`wrap(func)` and `wrap(func=func)` give two different results (`double_up_as_factory` error?)

[thorwhalen]

When func is given as a keyword arg, the effect is different (it becomes a factory) than when given as a positional arg (which gives us the (correct) Wrap object.

Reproduce error:

from i2 import wrap

def foo(x):
    return x

wrap(foo)
# <i2.Wrap foo(x)>

wrap(func=foo)
# functools.partial(<function wrap at 0x10610a8c0>, func=<function foo at 0x173d17520>)

Note: The problem might be with double_up_as_factory, not wrap itself.