Please describe the problem:
When chaining up functions with return, the error thrown in the chainee is ignored. The caller of the chainer doesn't receive the error.

Steps to reproduce:
This portion of code
(
 appendChild: chainer,
 insertBefore: chainee,
)
---
public Node appendChild(Node newChild) throws Exception {
      return insertBefore(newChild, null);
}
----
is compiled into

----
DOMNode* dom_node_appendChild (DOMNode* self, DOMNode* newChild, GError** error) {
    GError * inner_error;
    g_return_val_if_fail (self != NULL, NULL);
    g_return_val_if_fail (newChild != NULL, NULL);
    inner_error = NULL;
    return dom_node_insertBefore (self, newChild, NULL, &inner_error);
}   
----





Actual results:
The inner_error is not properly propagated from the chainee to the caller.

Expected results:
The inner_error is properly propagated from the chainee to the caller.

Does this happen every time?


Other information: