wasm: Implement trunc/wrap for 128 bit integers

This also implments wrapping for arbitrary integer widths between 64 and 128.
`@truncate` was fixed where the wasm types between operand and result differentiated.
We solved this by first casting and then wrapping.
10fe24c043Luuk de Gram committed on 5/18/2022, 5:43:33 AMparentea073a6
1 file changedLine totals unavailable