an class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;location_of_error&nbsp;:&nbsp;<span class="constructor">Syntaxerr</span>.error&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Location</span>.t<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;ill_formed_ast&nbsp;:&nbsp;<span class="constructor">Location</span>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span clas