Add more useless-return tests

Test suite has been improved with more tests to verify no bugs have been
introduced by the recent changes to the checker.

Author: crazybolillo

tests/functional/u/useless/useless_return.py

@@ -41,3 +41,30 @@ def function5(parameter):  # [useless-return]
         parameter.do()
     except RuntimeError:
         return
+
+
+def code_after_return(param):
+    try:
+        param.kaboom()
+    except RuntimeError:
+        param.other()
+        return
+
+    param.something_else()
+    param.state = "good"
+
+
+def code_after_else(obj):
+    if obj.k:
+        pass
+    else:
+        return
+
+    obj.do()
+
+
+def return_in_loop(obj):
+    for _ in range(10):
+        obj.do()
+        if obj.k:
+            return