+ Messages
+ ------------------------------------------------------------------------- */
+
+// PRIM rather than CONSTR, because PRIM objects cannot be duplicated by the GC.
+
+INFO_TABLE_CONSTR(stg_MSG_TRY_WAKEUP,2,0,0,PRIM,"MSG_TRY_WAKEUP","MSG_TRY_WAKEUP")
+{ foreign "C" barf("MSG_TRY_WAKEUP object entered!") never returns; }
+
+INFO_TABLE_CONSTR(stg_MSG_THROWTO,4,0,0,PRIM,"MSG_THROWTO","MSG_THROWTO")
+{ foreign "C" barf("MSG_THROWTO object entered!") never returns; }
+
+INFO_TABLE_CONSTR(stg_MSG_BLACKHOLE,3,0,0,PRIM,"MSG_BLACKHOLE","MSG_BLACKHOLE")
+{ foreign "C" barf("MSG_BLACKHOLE object entered!") never returns; }
+
+// used to overwrite a MSG_THROWTO when the message has been used/revoked
+INFO_TABLE_CONSTR(stg_MSG_NULL,1,0,0,PRIM,"MSG_NULL","MSG_NULL")
+{ foreign "C" barf("MSG_NULL object entered!") never returns; }
+
+/* ----------------------------------------------------------------------------