Maximum recursion depth exceeded on simple code

[K900]

Steps to reproduce

1. Install the latest pylint version

# as of this writing:
astroid==2.3.3
isort==4.3.21
lazy-object-proxy==1.4.3
mccabe==0.6.1
pylint==2.4.4
six==1.14.0
wrapt==1.11.2

2. Create a file with the following contents:

k = {}
(_ for k in dict(**k))

3. Run pylint yourfile.py

Current behavior

Pylint crashes with "maximum recursion depth exceeded".

Expected behavior

Pylint does not crash with "maximum recursion depth exceeded".

pylint --version output

pylint 2.4.4
astroid 2.3.3
Python 3.8.1 (default, Jan 22 2020, 06:38:00) 
[GCC 9.2.0]

[K900]

Interestingly, changing the name of the loop variable to anything other than k, e.g. a or even _, makes this not crash anymore.

[K900]

Also interestingly, k = {}; (_ for k in {**k}) does not crash.

[K900]

Also, _ in the original example seems to be completely irrelevant, as long as it's a valid expression (i.e. not a syntax error). 0 for k in ..., None for k in ..., k for k in ..., etc. all crash equivalently.

[PCManticore]

Thanks for the report!