compiler rejects valid ull UInt128 literals

[stepancheg]

seems like compiler rejects valid uint128 literals. Like in this code:

main() {
    var a = 0xff0102030405060708090a0b0c0d0e0f_ull;
}

###############################
main() {
    var a = 0xff0102030405060708090a0b0c0d0e0f_ull;
------------^
}

###############################
./tmp.clay(2,12): error: uint128 literal out of range

compilation context: 
    main()
  ./lib-clay/core/system/system.clay(22,30):
    runMain(Int32, Pointer[Pointer[Int8]], Static[main])
  ./lib-clay/core/system/system.clay(32,13):
    callMain(Static[main], Int32, Pointer[Pointer[Int8]])
    external main

[jckarter]

Literals larger than 64 bits aren't supported yet. GCC and clang have similar limitations. Note that int128 will only work on Unix x86-64 platforms as well.

[stepancheg]

In that case compiler message that explains that it is know issue, would help.