reports: BaseReport.{passed,failed,skipped} more friendly to mypy

Not smart enough to understand the previous code.

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:
@@ -348,7 +357,7 @@ class CollectReport(BaseReport):
     def __init__(
         self,
         nodeid: str,
-        outcome: "Literal['passed', 'skipped', 'failed']",
+        outcome: "Literal['passed', 'failed', 'skipped']",
         longrepr,
         result: Optional[List[Union[Item, Collector]]],
         sections: Iterable[Tuple[str, str]] = (),

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