Revert "Fix teardown error reporting when `--maxfail=1` (#11721)"

Fix #12021.
Reopens #11706.

This reverts commit 12b9bd5801.

This change caused a bad regression in pytest-xdist:
https://github.com/pytest-dev/pytest-xdist/issues/1024

pytest-xdist necessarily has special handling of `--maxfail` and session
fixture teardown get executed multiple times with the change.

Since I'm not sure how to adapt pytest-xdist myself, revert for now.

I kept the sticky `shouldstop`/`shouldfail` changes as they are good
ideas regardless I think.

changelog/12021.bugfix.rst

@@ -0,0 +1 @@
+Reverted a fix to `--maxfail` handling in pytest 8.0.0 because it caused a regression in pytest-xdist whereby session fixture teardowns may get executed multiple times when the max-fails is reached.

doc/en/changelog.rst

@@ -85,6 +85,8 @@ Bug Fixes
 
 - `#11706 <https://github.com/pytest-dev/pytest/issues/11706>`_: Fix reporting of teardown errors in higher-scoped fixtures when using `--maxfail` or `--stepwise`.
 
+  NOTE: This change was reverted in pytest 8.0.2 to fix a `regression <https://github.com/pytest-dev/pytest-xdist/issues/1024>`_ it caused in pytest-xdist.
+
 
 - `#11758 <https://github.com/pytest-dev/pytest/issues/11758>`_: Fixed ``IndexError: string index out of range`` crash in ``if highlighted[-1] == "\n" and source[-1] != "\n"``.
   This bug was introduced in pytest 8.0.0rc1.

src/_pytest/runner.py

@@ -132,10 +132,6 @@ def runtestprotocol(
             show_test_item(item)
         if not item.config.getoption("setuponly", False):
             reports.append(call_and_report(item, "call", log))
-    # If the session is about to fail or stop, teardown everything - this is
-    # necessary to correctly report fixture teardown errors (see #11706)
-    if item.session.shouldfail or item.session.shouldstop:
-        nextitem = None
     reports.append(call_and_report(item, "teardown", log, nextitem=nextitem))
     # After all teardown hooks have been called
     # want funcargs and request info to go away.

testing/test_runner.py

@@ -1089,53 +1089,3 @@ def test_outcome_exception_bad_msg() -> None:
     with pytest.raises(TypeError) as excinfo:
         OutcomeException(func)  # type: ignore
     assert str(excinfo.value) == expected
-
-
-def test_teardown_session_failed(pytester: Pytester) -> None:
-    """Test that higher-scoped fixture teardowns run in the context of the last
-    item after the test session bails early due to --maxfail.
-
-    Regression test for #11706.
-    """
-    pytester.makepyfile(
-        """
-        import pytest
-
-        @pytest.fixture(scope="module")
-        def baz():
-            yield
-            pytest.fail("This is a failing teardown")
-
-        def test_foo(baz):
-            pytest.fail("This is a failing test")
-
-        def test_bar(): pass
-        """
-    )
-    result = pytester.runpytest("--maxfail=1")
-    result.assert_outcomes(failed=1, errors=1)
-
-
-def test_teardown_session_stopped(pytester: Pytester) -> None:
-    """Test that higher-scoped fixture teardowns run in the context of the last
-    item after the test session bails early due to --stepwise.
-
-    Regression test for #11706.
-    """
-    pytester.makepyfile(
-        """
-        import pytest
-
-        @pytest.fixture(scope="module")
-        def baz():
-            yield
-            pytest.fail("This is a failing teardown")
-
-        def test_foo(baz):
-            pytest.fail("This is a failing test")
-
-        def test_bar(): pass
-        """
-    )
-    result = pytester.runpytest("--stepwise")
-    result.assert_outcomes(failed=1, errors=1)