Tests that XS0096 is raised when @as value is syntactically wrong, even if the option is never used.
Test ab-err-s0096-008.xml is expected to fail with error code err:XS0096.
<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="3.0">
   <p:output port="result">
   <p:option name="var" select="5" as="xs:integer-">
   <p:identity>
      <p:with-input port="source">
         <doc/>
      </p:with-input>
   </p:identity>
</p:declare-step>
Add declaration for the xs: namespace
Some new and some changed tests