(init): Delete.
(func): Delete definition and provide extern declaration.
(t): New.
(main): Don't call printf. Call func and store its result in t.
* return-nodebug1.c: New.
* return-nodebug.exp: Don't expect stdio output. Instead, print
the global variable t. Drop printf formatters and cast types from
foreach loop. Don't use prepare_for_testing. Compile
return-nodebug.c and return-nodebug1.c in separate steps. Don't
define FORMAT or CAST.
Pedro Alves