;<span class="constructor">Location</span>.t<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Ill_formed_ast</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Location</span>.t&nbsp;*&nbsp;string<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Invalid_package_type</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Location</span>.t&nbsp;*&nbsp;string<br>
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