logilab-astng #4294 E1102 false positive (not callable) [validation pending]

Consider the following code snippet using mechanize[1]:

$ cat z_z.py
from mechanize import Browser
browser = Browser()

It leads to an apparently false positive E1102 report:

$ pylint -e ./z_z.py
************* Module z_z
E:  3: browser.open is not callable

This is with:

$ pylint --version
pylint 0.13.2,
astng 0.17.0, common 0.21.2
Python 2.4.4 (#1, Sep  9 2007, 22:46:13)
[GCC 4.1.2 (Gentoo 4.1.2 p1.0.1)]

Syt note: probably an astng bug

appeared in<not specified>
done in0.24.1
load left0.000
closed by#31dd11229614 backport pylint-brain 27:2c83031cb6a3. Closes #4294, #46273