Parsing fails with empty elements

[hetoug]

I have a wsdl with a lot of elements of the type:

      <s:element name="TimeEntry_GetAll">
        <s:complexType />
      </s:element>

This fails with the error value: Empty'.
I can work around this by changing them (all 444 of them) to:

        <s:complexType>
          <s:all minOccurs="0"/>
        </s:complexType>

But that's not very handy.

Changing to <s:simpleType/> gives the same result.

I know: PRs with tests accepted 😄