Fix builtin inference on property not including function arguments

Author: areveny

ChangeLog

@@ -6,6 +6,8 @@ What's New in astroid 2.10.0?
 =============================
 Release date: TBA
 
+* Fixed builtin inferenence on `property` calls not calling the `postinit` of the new node, which
+  resulted in instance arguments missing on these nodes.
 
 What's New in astroid 2.9.4?
 ============================

astroid/brain/brain_builtin_inference.py

@@ -566,14 +566,16 @@ def infer_property(node, context=None):
     if not isinstance(inferred, (nodes.FunctionDef, nodes.Lambda)):
         raise UseInferenceDefault
 
-    return objects.Property(
+    prop_func = objects.Property(
         function=inferred,
         name=inferred.name,
         doc=getattr(inferred, "doc", None),
         lineno=node.lineno,
         parent=node,
         col_offset=node.col_offset,
     )
+    prop_func.postinit(body=[], args=inferred.args)
+    return prop_func
 
 
 def infer_bool(node, context=None):

tests/unittest_brain_builtin.py

@@ -0,0 +1,22 @@
+# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
+# For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
+"""Unit Tests for the builtins brain module."""
+
+import unittest
+
+from astroid import extract_node, objects
+
+
+class BuiltinsTest(unittest.TestCase):
+    def test_infer_property(self):
+        class_with_property = extract_node(
+            """
+        class Something:
+            def getter():
+                return 5
+            asd = property(getter) #@
+        """
+        )
+        inferred_property = list(class_with_property.value.infer())[0]
+        self.assertTrue(isinstance(inferred_property, objects.Property))
+        self.assertTrue(hasattr(inferred_property, "args"))