diff --git a/src/_pytest/fixtures.py b/src/_pytest/fixtures.py
index 53f33d3e1..5bdee3096 100644
--- a/src/_pytest/fixtures.py
+++ b/src/_pytest/fixtures.py
@@ -16,6 +16,7 @@ from typing import Generic
 from typing import Iterable
 from typing import Iterator
 from typing import List
+from typing import MutableMapping
 from typing import Optional
 from typing import overload
 from typing import Sequence
@@ -525,9 +526,10 @@ class FixtureRequest:
         return self._pyfuncitem.fspath  # type: ignore
 
     @property
-    def keywords(self):
+    def keywords(self) -> MutableMapping[str, Any]:
         """Keywords/markers dictionary for the underlying node."""
-        return self.node.keywords
+        node: nodes.Node = self.node
+        return node.keywords
 
     @property
     def session(self) -> "Session":
@@ -607,14 +609,11 @@ class FixtureRequest:
     def _get_fixturestack(self) -> List["FixtureDef[Any]"]:
         current = self
         values: List[FixtureDef[Any]] = []
-        while 1:
-            fixturedef = getattr(current, "_fixturedef", None)
-            if fixturedef is None:
-                values.reverse()
-                return values
-            values.append(fixturedef)
-            assert isinstance(current, SubRequest)
+        while isinstance(current, SubRequest):
+            values.append(current._fixturedef)  # type: ignore[has-type]
             current = current._parent_request
+        values.reverse()
+        return values
 
     def _compute_fixture_value(self, fixturedef: "FixtureDef[object]") -> None:
         """Create a SubRequest based on "self" and call the execute method
diff --git a/src/_pytest/nose.py b/src/_pytest/nose.py
index bb8f99772..de91af85a 100644
--- a/src/_pytest/nose.py
+++ b/src/_pytest/nose.py
@@ -2,11 +2,12 @@
 from _pytest import python
 from _pytest import unittest
 from _pytest.config import hookimpl
+from _pytest.fixtures import getfixturemarker
 from _pytest.nodes import Item
 
 
 @hookimpl(trylast=True)
-def pytest_runtest_setup(item):
+def pytest_runtest_setup(item) -> None:
     if is_potential_nosetest(item):
         if not call_optional(item.obj, "setup"):
             # Call module level setup if there is no object level one.
@@ -15,7 +16,7 @@ def pytest_runtest_setup(item):
         item.session._setupstate.addfinalizer((lambda: teardown_nose(item)), item)
 
 
-def teardown_nose(item):
+def teardown_nose(item) -> None:
     if is_potential_nosetest(item):
         if not call_optional(item.obj, "teardown"):
             call_optional(item.parent.obj, "teardown")
@@ -29,11 +30,16 @@ def is_potential_nosetest(item: Item) -> bool:
     )
 
 
-def call_optional(obj, name):
+def call_optional(obj: object, name: str) -> bool:
     method = getattr(obj, name, None)
-    isfixture = hasattr(method, "_pytestfixturefunction")
-    if method is not None and not isfixture and callable(method):
-        # If there's any problems allow the exception to raise rather than
-        # silently ignoring them.
-        method()
-        return True
+    if method is None:
+        return False
+    is_fixture = getfixturemarker(method) is not None
+    if is_fixture:
+        return False
+    if not callable(method):
+        return False
+    # If there are any problems allow the exception to raise rather than
+    # silently ignoring it.
+    method()
+    return True
diff --git a/src/_pytest/python.py b/src/_pytest/python.py
index 50ea60c2d..29ebd176b 100644
--- a/src/_pytest/python.py
+++ b/src/_pytest/python.py
@@ -922,10 +922,6 @@ class CallSpec2:
         cs._idlist = list(self._idlist)
         return cs
 
-    def _checkargnotcontained(self, arg: str) -> None:
-        if arg in self.params or arg in self.funcargs:
-            raise ValueError(f"duplicate {arg!r}")
-
     def getparam(self, name: str) -> object:
         try:
             return self.params[name]
@@ -947,7 +943,8 @@ class CallSpec2:
         param_index: int,
     ) -> None:
         for arg, val in zip(argnames, valset):
-            self._checkargnotcontained(arg)
+            if arg in self.params or arg in self.funcargs:
+                raise ValueError(f"duplicate {arg!r}")
             valtype_for_arg = valtypes[arg]
             if valtype_for_arg == "params":
                 self.params[arg] = val
diff --git a/src/_pytest/reports.py b/src/_pytest/reports.py
index bcd40fb36..d2d7115b2 100644
--- a/src/_pytest/reports.py
+++ b/src/_pytest/reports.py
@@ -65,6 +65,7 @@ class BaseReport:
     ]
     sections: List[Tuple[str, str]]
     nodeid: str
+    outcome: "Literal['passed', 'failed', 'skipped']"
 
     def __init__(self, **kw: Any) -> None:
         self.__dict__.update(kw)
@@ -141,9 +142,17 @@ class BaseReport:
             content for (prefix, content) in self.get_sections("Captured stderr")
         )
 
-    passed = property(lambda x: x.outcome == "passed")
-    failed = property(lambda x: x.outcome == "failed")
-    skipped = property(lambda x: x.outcome == "skipped")
+    @property
+    def passed(self) -> bool:
+        return self.outcome == "passed"
+
+    @property
+    def failed(self) -> bool:
+        return self.outcome == "failed"
+
+    @property
+    def skipped(self) -> bool:
+        return self.outcome == "skipped"
 
     @property
     def fspath(self) -> str:
@@ -348,8 +357,10 @@ class CollectReport(BaseReport):
     def __init__(
         self,
         nodeid: str,
-        outcome: "Literal['passed', 'skipped', 'failed']",
-        longrepr,
+        outcome: "Literal['passed', 'failed', 'skipped']",
+        longrepr: Union[
+            None, ExceptionInfo[BaseException], Tuple[str, int, str], str, TerminalRepr
+        ],
         result: Optional[List[Union[Item, Collector]]],
         sections: Iterable[Tuple[str, str]] = (),
         **extra,
diff --git a/testing/python/integration.py b/testing/python/integration.py
index 5dce6bdca..8576fcee3 100644
--- a/testing/python/integration.py
+++ b/testing/python/integration.py
@@ -3,6 +3,7 @@ from typing import Any
 import pytest
 from _pytest import runner
 from _pytest._code import getfslineno
+from _pytest.fixtures import getfixturemarker
 from _pytest.pytester import Pytester
 
 
@@ -334,7 +335,8 @@ class TestReRunTests:
 def test_pytestconfig_is_session_scoped() -> None:
     from _pytest.fixtures import pytestconfig
 
-    marker = pytestconfig._pytestfixturefunction  # type: ignore
+    marker = getfixturemarker(pytestconfig)
+    assert marker is not None
     assert marker.scope == "session"
 
 
diff --git a/testing/test_terminal.py b/testing/test_terminal.py
index 6d0a23fe0..e536f7098 100644
--- a/testing/test_terminal.py
+++ b/testing/test_terminal.py
@@ -2230,19 +2230,19 @@ def test_skip_reasons_folding() -> None:
 
     ev1 = cast(CollectReport, X())
     ev1.when = "execute"
-    ev1.skipped = True
+    ev1.skipped = True  # type: ignore[misc]
     ev1.longrepr = longrepr
 
     ev2 = cast(CollectReport, X())
     ev2.when = "execute"
     ev2.longrepr = longrepr
-    ev2.skipped = True
+    ev2.skipped = True  # type: ignore[misc]
 
     # ev3 might be a collection report
     ev3 = cast(CollectReport, X())
     ev3.when = "collect"
     ev3.longrepr = longrepr
-    ev3.skipped = True
+    ev3.skipped = True  # type: ignore[misc]
 
     values = _folded_skips(Path.cwd(), [ev1, ev2, ev3])
     assert len(values) == 1