Use alias for astroid.nodes 04 (#4869)

* Use alias for astroid nodes 04

* Resolve name conflicts

* Apply suggestions from code review

Co-authored-by: Pierre Sassoulas <pierre.sassoulas@gmail.com>

tests/pyreverse/test_inspector.py

diff --git a/tests/pyreverse/test_inspector.py b/tests/pyreverse/test_inspector.py
index cbd67be..3a04dfa 100644
--- a/tests/pyreverse/test_inspector.py
+++ b/tests/pyreverse/test_inspector.py
@@ -18,6 +18,7 @@
 
 import astroid
 import pytest
+from astroid import nodes
 
 from pylint.pyreverse import inspector
 
@@ -34,7 +35,7 @@
     klass = project.get_module("data.clientmodule_test")["Ancestor"]
     assert hasattr(klass, "implements")
     assert len(klass.implements) == 1
-    assert isinstance(klass.implements[0], astroid.nodes.ClassDef)
+    assert isinstance(klass.implements[0], nodes.ClassDef)
     assert klass.implements[0].name == "Interface"