'break' in nested function causes an internal error  #15378

def foo():
    for x in range(10):
        def inner():
            break

/home/xxm/Desktop/example.py:4: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
Please report a bug at https://github.com/python/mypy/issues
version: 1.4.0+dev.66bd2c441277b29b1454e26b2a3454a0dae5fb18
Traceback (most recent call last):
  File "/home/xxm/.local/bin/mypy", line 8, in <module>
    sys.exit(console_entry())
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/__main__.py", line 15, in console_entry
    main()
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/main.py", line 95, in main
    res, messages, blockers = run_build(sources, options, fscache, t0, stdout, stderr)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/main.py", line 174, in run_build
    res = build.build(sources, options, None, flush_errors, fscache, stdout, stderr)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 194, in build
    result = _build(
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 267, in _build
    graph = dispatch(sources, manager, stdout)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 2926, in dispatch
    process_graph(graph, manager)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 3324, in process_graph
    process_stale_scc(graph, scc, manager)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 3425, in process_stale_scc
    graph[id].type_check_first_pass()
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/build.py", line 2311, in type_check_first_pass
    self.type_checker().check_first_pass()
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 472, in check_first_pass
    self.accept(d)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 786, in accept
    return visitor.visit_func_def(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 962, in visit_func_def
    self._visit_func_def(defn)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 966, in _visit_func_def
    self.check_func_item(defn, name=defn.name)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 1038, in check_func_item
    self.check_func_def(defn, typ, name, allow_empty)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 1234, in check_func_def
    self.accept(item.body)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 1220, in accept
    return visitor.visit_block(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 2684, in visit_block
    self.accept(s)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 1401, in accept
    return visitor.visit_for_stmt(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 4564, in visit_for_stmt
    self.accept_loop(s.body, s.else_body)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 602, in accept_loop
    self.accept(body)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 1220, in accept
    return visitor.visit_block(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 2684, in visit_block
    self.accept(s)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 786, in accept
    return visitor.visit_func_def(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 962, in visit_func_def
    self._visit_func_def(defn)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 966, in _visit_func_def
    self.check_func_item(defn, name=defn.name)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 1038, in check_func_item
    self.check_func_def(defn, typ, name, allow_empty)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 1234, in check_func_def
    self.accept(item.body)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 1220, in accept
    return visitor.visit_block(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 2684, in visit_block
    self.accept(s)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 582, in accept
    stmt.accept(self)
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/nodes.py", line 1455, in accept
    return visitor.visit_break_stmt(self)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/checker.py", line 4844, in visit_break_stmt
    self.binder.handle_break()
  File "/home/xxm/.local/lib/python3.11/site-packages/mypy/binder.py", line 379, in handle_break
    self.allow_jump(self.break_frames[-1])
                    ~~~~~~~~~~~~~~~~~^^^^
IndexError: list index out of range
/home/xxm/Desktop/exmaple.py:4: : note: use --pdb to drop into pdb