Function patch_seq_make_variant_8 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn patch_seq_make_variant_8(
    stack: Stack,
) -> Stack

Create a variant with 8 fields

Stack effect: ( field1 field2 field3 field4 field5 field6 field7 field8 Symbol – Variant )

Safety

Stack must have 8 fields and Symbol tag on top