Close #112

This is in a similar vein with the `isinstance` builtin, with minor changes.

Close PyCQA/pylint#1746

Close #98

Astroid cannot infer this attribute because of the way
attr builds its classes

Close PyCQA/pylint#1884

The augmented assign rhs context path was deleted most likely
due to a recently fixed inference bug where InferenceContext path
attributes were shared between objects.

Recursive functions on the right hand side of the augmented assign would
forget that they were already called, causing an eventual RecursionError
in astroid inference

Now that the InferenceContext clone() method properly copies the
inference path between Contexts, it's fine to remove this hack.

Fixes #437, Fixes #447, Fixes #313, Fixes PyCQA/pylint#1642, Fixes PyCQA/pylint#1805, Fixes PyCQA/pylint#1854, Fixes PyCQA/pylint#1452

Set predicates for transforms which use inference_tips to prevent
a node's _explicit_inference from being overwritten

Fixes PyCQA/pylint#1860

We can infer the result of random.sample, but only its type, the elements
being filled with None values. This brain tip should improve the situation a bit by
providing additional hints at inference time.

Close PyCQA/pylint#811

This commit fixes import errors when modname
started with, but was not equal, to six.moves

This prevents __qualname__ and __module__, when called as locals in the class definition,
from raising a false-positive no-member in pylint

Close #473

Close PyCQA/pylint#1706

Close PyCQA/pylint#961

Close #172

Close PyCQA/pylint#1328

Close PyCQA/pylint#1530

For instance, one can implement a namedtuple base class, which gets reused
on a class with the same name later on in the file. Until now, we considered
these two classes as being the same, because they shared the name, but in fact
they are different, being created at different locations and through different
means.

Close PyCQA/pylint#1458

In some cases, when the operand does not have a .name attribute,
getting the string representation of a BadUnaryOperationMessage leads
to a crash.

Close PyCQA/pylint#1563

Closes PyCQA/pylint#1463

Closes PyCQA/Pylint#782

Closes PyCQA/pylint#1388