superfluous-parens in if-expression are not superfluous

[andreasvc]

Steps to reproduce

Create file t.py:

def f(b):
    return [a for a in (b if b else [b])]

Related to #574 but this example has an if-expression instead of short circut.

Current behavior

t.py:2:0: C0325: Unnecessary parens after 'in' keyword (superfluous-parens)

Note that following this suggestion actually creates a SyntaxError:

def g(b):
    return [a for a in b if b else [b]]

t.py:2:0: E0001: invalid syntax (<unknown>, line 2) (syntax-error)

Expected behavior

This warning is not emitted in this case.

pylint --version output

pylint 2.3.1
astroid 2.2.5
Python 3.7.2+ (default, Feb 27 2019, 15:41:59) 
[GCC 8.2.0]

[PCManticore]

Thanks @andreasvc for reporting this issue.

[p-l-]

I'm also having this bug in an expression that matches @andreasvc's pattern:

   rec["answers"] = [elt.lower() for elt in (rec["answers"] if rec["answers"] else [])]