Excluded decorators in excluded branches leak into the outer indentation.

[HexDecimal]

Describe the bug Coverage supports excluding coverage on branches and on function decorators. Alone these features work, but together they cause a leak of the exclusion into the outer indentation, excluding everything up to the next branch. See the minimal example.

To Reproduce

• What version of Python are you using?

Python 3.11.0 (main, Oct 24 2022, 18:26:48) [MSC v.1933 64 bit (AMD64)] on win32

Python versions 3.8 and later tested with CI.

• What version of coverage.py shows the problem? The output of coverage debug sys is helpful.

coverage_version: 7.2.6

• What versions of what packages do you have installed? The output of pip freeze is helpful.

$ pip freeze
coverage==7.2.6

• What code shows the problem? Give us a specific commit of a specific repo that we can check out. If you've already worked around the problem, please provide a commit before that fix.

Real example of affected code, the exclusion leaks to the entire class below: https://github.com/HexDecimal/python-tcod-ecs/blob/cb0ad6a3b562ceb68a8596d6fd1564b2b3ca8de2/tcod/ecs/init.py#L248-L262 Issue visible in Codecov: https://app.codecov.io/gh/HexDecimal/python-tcod-ecs/commit/cb0ad6a3b562ceb68a8596d6fd1564b2b3ca8de2/blob/tcod/ecs/init.py#L248

Minimal example:

# pyproject.toml
[tool.coverage.report]
exclude_lines = ["if TYPE_CHECKING:", "@overload"]  # Issue triggers only with both of these exclusions.

# sample.py
from typing import TYPE_CHECKING, overload

class Test:
    if TYPE_CHECKING:
        @overload
        def test() -> None:
            ...

if True:  # Branch excluded!
    pass

if True:  # Included
    pass

if TYPE_CHECKING:
    @overload
    def test() -> None:
        ...

if True:  # Branch excluded!
    pass

if True:  # Included
    pass

• What commands should we run to reproduce the problem? Be specific. Include everything, even git clone, pip install, and so on. Explain like we're five!

With the above two files in the working directory:

coverage run sample.py
coverage html

Expected behavior Excluded branches should overlap without covering areas outside of either.

Additional context I can workaround this issue if I remove @overload from the excludes and exclude ... instead, this excludes everything I want:

[tool.coverage.report]
exclude_lines = ['^\s*\.\.\.', "if TYPE_CHECKING:"]