* error.c (tree_formatting_info): New data type.
	(tree_being_formatted): New macro.
	(tree_formatting_flags): Likewise.
	(put_whitespace): Likewise.
	(print_tree_identifier): Likewise.
	(print_identifier): Likewise.
	(cp_tree_printer, print_function_argument_list, print_declaration,
	print_expression, print_function_declaration,
	print_function_parameter, print_type, print_cv_qualifier): New
	functions.
	(init_error): Initialize lang_printer.

From-SVN: r35965