Comptime return value LLVM

[travisdoor]

We can now convert only string literals []u8 to heap data in LLVM IR. We might consider do it for more types, or at least do proper error reporting.

main :: fn () s32 {
    print("%\n", ARR);
    return 0;
}


ARR :: call_me();

call_me :: fn () []u32 #comptime {
    tmp: []u32;
    alloc_slice(&tmp, 10);
    return tmp;
}