caml_{curry,apply,send}* for unboxed types (#1104)

Author: Ekdohibs

backend/cmm.ml

@@ -13,7 +13,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-type machtype_component =
+type machtype_component = Cmx_format.machtype_component =
   | Val
   | Addr
   | Int

backend/cmm.mli

@@ -15,7 +15,7 @@
 
 (* Second intermediate language (machine independent) *)
 
-type machtype_component =
+type machtype_component = Cmx_format.machtype_component =
   | Val
   | Addr
   | Int