.func.up</code>.
		The <i>&lt;reason&gt;</i> is one of the following messages:
		<table>
			<tr><td><code>"no match found"</code>       </td><td>no similar field key found</td></tr>
			<tr><td><code>"missing"</code>              </td><td>missing field found in <code>other</code> table</td></tr>
			<tr><td><code>"bytecodes not matched"</code></td><td>bytecodes of two different function differ</td></tr>
			<tr><td><code>"wrong match"</code>          </td><td>other value (<i>e.g.</i> previously bound) was expe