Resolve implicit __call__ call on typed elements (PY-33500)

So receiver for implicit `__call__` calls could be determined and hence generics substitutions would be inferred.

GitOrigin-RevId: 51049a8c8ccae6b6620941952b7f1eba53932799

python/python-psi-api/src/com/jetbrains/python/psi/PyCallExpression.java

@@ -51,6 +51,10 @@ public interface PyCallExpression extends PyCallSiteExpression {
         return null;
       }
 
+      if (resolvedCallee != null && PyNames.CALL.equals(resolvedCallee.getName()) && !PyNames.CALL.equals(qualifiedCallee.getName())) {
+        return qualifiedCallee;
+      }
+
       return qualifiedCallee.getQualifier();
     }