correct type for static access to properties (PY-5915)

python/src/com/jetbrains/python/psi/impl/PyReferenceExpressionImpl.java

@@ -216,12 +216,16 @@ public class PyReferenceExpressionImpl extends PyElementImpl implements PyRefere
     PyExpression qualifier = getQualifier();
     final String name = getName();
     if (name != null && qualifier != null) {
-      PyType qualifier_type = context.getType(qualifier);
-      if (qualifier_type instanceof PyClassType) {
-        PyClass pyClass = ((PyClassType)qualifier_type).getPyClass();
+      PyType qualifierType = context.getType(qualifier);
+      if (qualifierType instanceof PyClassType) {
+        final PyClassType classType = (PyClassType)qualifierType;
+        PyClass pyClass = classType.getPyClass();
         if (pyClass != null) {
           Property property = pyClass.findProperty(name);
           if (property != null) {
+            if (classType.isDefinition()) {
+              return Ref.<PyType>create(PyBuiltinCache.getInstance(pyClass).getObjectType(PyNames.PROPERTY));
+            }
             final Maybe<PyFunction> accessor = property.getByDirection(AccessDirection.of(this));
             if (!accessor.isDefined()) {
               return Ref.create(null);

python/testData/inspections/PyUnresolvedReferencesInspection/propertyType.py

@@ -0,0 +1,34 @@
+# coding=utf-8
+
+"""
+Sample of code that use fget
+"""
+
+class Parent(object):
+    """
+    parent class to show a simply property
+    """
+
+    @property
+    def attribute(self):
+        """
+        some attribute in parent
+        """
+        return True
+
+class Child(Parent):
+    """
+    child class
+    """
+
+    @property
+    def attribute(self):
+        """
+        do something before execute code of parent attribute
+        """
+        print "i'm the child"
+        return Parent.attribute.fget(self)
+
+if __name__ == '__main__':
+    child = Child()
+    print child.attribute

python/testSrc/com/jetbrains/python/inspections/PyUnresolvedReferencesInspectionTest.java

@@ -93,6 +93,10 @@ public class PyUnresolvedReferencesInspectionTest extends PyTestCase {
     doMultiFileTest();
   }
 
+  public void testPropertyType() {  // PY-5915
+    doTest();
+  }
+
   private void doMultiFileTest() {
     myFixture.copyFileToProject("inspections/PyUnresolvedReferencesInspection/__init__.py", "PyUnresolvedReferencesInspection/__init__.py");
     myFixture.copyFileToProject("inspections/PyUnresolvedReferencesInspection/" + getTestName(true) + ".py",