add the initialization directive

src/prolog/forms.rs

@@ -174,6 +174,7 @@ pub enum Declaration {
     Dynamic(ClauseName, usize), // name, arity
     EndOfFile,
     Hook(CompileTimeHook, PredicateClause, VecDeque<TopLevel>),
+    ModuleInitialization(Vec<QueryTerm>, VecDeque<TopLevel>), // goal
     Module(ModuleDecl),
     NonCountedBacktracking(ClauseName, usize), // name, arity
     Op(OpDecl),
@@ -328,7 +329,7 @@ pub struct Module {
     pub user_term_expansions: (Predicate, VecDeque<TopLevel>), // term expansions inherited from the user scope.
     pub user_goal_expansions: (Predicate, VecDeque<TopLevel>), // same for goal_expansions.
     pub inserted_expansions: bool, // has the module been successfully inserted into toplevel??
-}
+ }
 
 #[derive(Clone, PartialEq, Eq)]
 pub enum Number {