Support type comments in `PropertyDocumenter` (#11298)

tests/roots/test-ext-autodoc/target/cached_property.py

@@ -5,3 +5,8 @@ class Foo:
     @cached_property
     def prop(self) -> int:
         return 1
+
+    @cached_property
+    def prop_with_type_comment(self):
+        # type: () -> int
+        return 1

tests/roots/test-ext-autodoc/target/properties.py

@@ -9,3 +9,14 @@ class Foo:
     @property
     def prop2(self) -> int:
         """docstring"""
+
+    @property
+    def prop1_with_type_comment(self):
+        # type: () -> int
+        """docstring"""
+
+    @classmethod
+    @property
+    def prop2_with_type_comment(self):
+        # type: () -> int
+        """docstring"""