restore use of .type in asm, but use modern @function (vs %function)

[musl] / src / setjmp / i386 / longjmp.s

.global _longjmp
.global longjmp
.type _longjmp,@function
.type longjmp,@function
_longjmp:
longjmp:
        mov  4(%esp),%edx
        mov  8(%esp),%eax
        test    %eax,%eax
        jnz 1f
        inc     %eax
1:
        mov   (%edx),%ebx
        mov  4(%edx),%esi
        mov  8(%edx),%edi
        mov 12(%edx),%ebp
        mov 16(%edx),%ecx
        mov     %ecx,%esp
        mov 20(%edx),%ecx
        jmp *%ecx