Tests p:with-input with empty @pipe and no default readable port
Test ab-with-input-031.xml is expected to fail with error code err:XS0067.
<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">
   <p:identity>
      <p:with-input pipe="">
   </p:identity>
</p:declare-step>
Fix namespace declarations
Creating new tests, extending rng and corrected xproc's test