Add test for crash on Compare node inference (#5057)

Closes #5048

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>

ChangeLog

@@ -80,6 +80,10 @@ Release date: TBA
   Closes #5030
   Closes #5036
 
+* Fix regression on Compare node inference
+
+  Closes #5048
+
 
 What's New in Pylint 2.11.1?
 ============================

tests/functional/r/regression/regression_5048.py

@@ -0,0 +1,9 @@
+"""Crash regression in astroid on Compare node inference
+Fixed in https://github.com/PyCQA/astroid/pull/1185"""
+# pylint: disable=missing-docstring
+
+
+# Reported at https://github.com/PyCQA/pylint/issues/5048
+def func(parameter):
+    if tuple() + (parameter[1],) in set():
+        raise Exception()

tests/test_functional.py

@@ -45,7 +45,8 @@
 
 # 'Wet finger' number of files that are reasonable to display by an IDE
 # 'Wet finger' as in 'in my settings there are precisely this many'.
-REASONABLY_DISPLAYABLE_VERTICALLY = 48
+# TODO revert back to 48 after reorganizing r/regression  # pylint: disable=fixme
+REASONABLY_DISPLAYABLE_VERTICALLY = 60
 
 
 class LintModuleOutputUpdate(testutils.LintModuleTest):