Ast.scope_decl_context_scope_iterSource constraint 'c scope_decl_context_scope_iter = 'c scope_decl_context_scope_iterinherit VisitorsRuntime.iterinherit ident_iterinherit constructor_iterinherit Utils.Pos.marked_itermethod visit_scope_decl_context_scope : 'd -> scope_decl_context_scope -> unit