Tests for error XS0014 to be raised, if two output ports are declared to be primary.
Test ab-output-declaration-003.xml is expected to fail with error code err:XS0014.
<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
   <p:output port="result" primary="true">
   <p:output port="secondary" primary="true">
   <p:identity>
      <p:with-input port="source">
         <t:doc/>
      </p:with-input>
   </p:identity>
</p:declare-step>
Fix namespace declarations
Creating new tests, extending rng and corrected xproc's test