refactor(ast): one file per ast_type -- UNSTABLE (4)

src/utils/ast/ast_list.c

@@ -0,0 +1,16 @@
+#include "utils/ast/ast.h"
+
+struct ast *ast_create_list(struct list *ast_list);
+
+struct ast_list *ast_get_list(struct ast *node);
+
+bool ast_is_list(struct ast *node)
+
+void ast_free_list(struct ast_list *ast_list)
+{
+    if (ast_list == NULL)
+        return;
+
+    list_deep_destroy(ast_list->children);
+    free(ast_list);
+}