wasm: Support `not` instruction for 128 bit integers
This also fixes the instruction for all other integer bitsizes,
as it was previously assuming to always be a bool.
128 bit substraction was also fixed as it contained a bug where it swapped
lhs with rhs.
fd081c74f1Luuk de Gram committed on 5/18/2022, 5:43:33 AMparent10fe24c