[clang][minor] set the location of injected destructors correctly

Summary:
This only makes a difference in the HTML output as far as I can tell but
it was always confusing to find the destructor node at the beginning of
blocks and functions instead of at the end, where they semantically
occur.

Reviewed By: skcho

Differential Revision: D30455863

fbshipit-source-id: c66f8dced

infer/src/clang/cTrans.ml

@@ -1996,7 +1996,7 @@ module CTrans_funct (F : CModule_type.CFrontend) : CModule_type.CTranslation = s
       if List.is_empty all_res_trans then None
       else
         let sil_loc =
-          CLocation.location_of_stmt_info context.translation_unit_context.source_file stmt_info
+          CLocation.location_of_stmt_info context.translation_unit_context.source_file stmt_info_loc
         in
         Some
           (PriorityNode.compute_results_to_parent trans_state_pri sil_loc (Destruction destr_kind)