Tests p:set-attributes
Test ab-set-attributes-011.xml is expected to fail with error code err:XC0023 [XProc, Core steps].
<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
   <p:input port="source">
   <p:output port="result">
   <p:set-attributes match="/" attributes="map{'att':'1'}">
</p:declare-step>
<doc xmlns:err="http://www.w3.org/ns/xproc-error" a="2">
         <!-- comment -->
         <?pi target ?>
         text
      </doc>
Changed test to new step signature.
Tests for p:set-attributes