extern void debug_generic_stmt (tree);
extern void debug_tree_chain (tree);
extern void print_generic_decl (FILE *, tree, int);
-extern void print_generic_stmt (FILE *, tree, int);
+extern void print_generic_stmt (FILE *, tree, int = 0);
extern void print_generic_stmt_indented (FILE *, tree, int, int);
-extern void print_generic_expr (FILE *, tree, int);
+extern void print_generic_expr (FILE *, tree, int = 0);
extern void dump_omp_clauses (pretty_printer *, tree, int, int);
extern int dump_generic_node (pretty_printer *, tree, int, int, bool);
extern void print_declaration (pretty_printer *, tree, int, int);