fix undefined-loop-variable with break and continue statements …

…in `else` blocks

pylint/checkers/variables.py

@@ -2242,7 +2242,7 @@ def _loopvar_name(self, node: astroid.Name) -> None:
             self.add_message("undefined-loop-variable", args=node.name, node=node)
             return
         if any(
-            isinstance(else_stmt, (nodes.Return, nodes.Raise))
+            isinstance(else_stmt, (nodes.Return, nodes.Raise, nodes.Break, nodes.Continue))
             for else_stmt in assign.orelse
         ):
             return

tests/functional/u/undefined/undefined_loop_variable.py

@@ -107,6 +107,24 @@ def for_else_raises(iterable):
     print(thing)
 
 
+def for_else_break(iterable):
+    while True:
+        for thing in iterable:
+            break
+        else:
+            break
+        print(thing)
+
+
+def for_else_continue(iterable):
+    while True:
+        for thing in iterable:
+            break
+        else:
+            continue
+        print(thing)
+
+
 lst = []
 lst2 = [1, 2, 3]