fix undefined-loop-variable with break and continue statements in else blocks

doc/whatsnew/fragments/7311.false_positive

@@ -0,0 +1,3 @@
+Fix `undefined-loop-variable` with `break` and `continue` statements in `else` blocks.
+
+Refs #7311

pylint/checkers/variables.py

@@ -2242,7 +2242,9 @@ 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

script/check_newsfragments.py

@@ -64,12 +64,14 @@ def check_file(file: Path, verbose: bool) -> bool:
 
 The standard format is:
 
-<one or more line of text>
+<one or more line of text ending with a '.'>
 <one blank line>
 <issue reference> #<issuenumber>
 
 Where <issue reference> can be one of: {', '.join(VALID_ISSUES_KEYWORDS)}
 
+The regex used is '{VALID_CHANGELOG_COMPILED_PATTERN}'.
+
 For example:
 
 ``pylint.x.y`` is now a private API.

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]
 

tests/functional/u/undefined/undefined_loop_variable.txt

@@ -1,4 +1,4 @@
 undefined-loop-variable:6:11:6:14:do_stuff:Using possibly undefined loop variable 'var':UNDEFINED
 undefined-loop-variable:25:7:25:11::Using possibly undefined loop variable 'var1':UNDEFINED
 undefined-loop-variable:75:11:75:14:do_stuff_with_redefined_range:Using possibly undefined loop variable 'var':UNDEFINED
-undefined-loop-variable:163:11:163:20:find_even_number:Using possibly undefined loop variable 'something':UNDEFINED
+undefined-loop-variable:181:11:181:20:find_even_number:Using possibly undefined loop variable 'something':UNDEFINED