<b><kbd>{trace}rxml-code{/trace}</kbd></b><p>

Executes the rxml code with tracing enabled. A report is appended at
the end of the result.
<p>
<b>Example:</b>
{trace}{catch}{set variable=verbose value=set0}{list-tags}{throw}Hide the rather long result{/throw}{/catch}{/trace}
<p>
<trace><catch><set variable=verbose value=set0><list-tags><throw>Hide the rather long result</throw></catch></trace>
