TODO items.

TODO

@@ -4,6 +4,12 @@
     manière que Parsing.symbol_start_pos.
   - tester que $startpos(i) est conforme à rhs_start_pos(i),
     idem pour end
+  - document how positions are computed
+  - concrete syntax for $endpos($0), and document it
+  - document how to translate ocamlyacc positions to Menhir
+  - document the fact that %inline preserves positions
+    but can REORDER side effects! (the inlined semantic
+    action is delayed to the beginning of the host semantic action)
 
 * Simplify Error.logA, etc. by integrating a format argument.