Fixers don't work for Mako and Jinja2 in edge case

[koxudaxi]

Thank you for creating a great plugin.

Describe the bug
JinjaAutoInspectFixer and MakoFilter don't work correctly in this case.

To Reproduce
I fixed Environment and Template in this code with fixers
Before:

from mako.template import Template
from jinja2 import Environment, PackageLoader 

Environment(loader=PackageLoader(package_path='yourapplication',package_name='templates'))
Template(str(value='abc'))

After:

from mako.template import Template
from jinja2 import Environment, PackageLoader 

Environment(loader=PackageLoader(package_path='yourapplication', package_name='templates', autoescape=True))
Template(str(value='abc', default_filters=['h']))

If an argument has keyword arguments then, Fixers insert an argument to nested argument.
the arguments have to be a top-level arguments

Screenshots

Additional context

• Plugin Version 1.18.0
• PyCharm Pro 2020.1.1
• Python Version 3.8.0

[tonybaloney]

Fix works really well, thanks for the detailed report