**Adding a u1 tag along with the current u8, u16, u32, u64 and field**. Booleans are widely used, and without u1 memory cells the compiler will need to codegen bit masking on top of u8s to handle casts to u1 and some u1 arithmetic operations. We could also swap u16 with u1 since booleans will probably see much more use than u16s.

[fcarreiro]

No description provided.

[fcarreiro]

Done