Simplify stmt
Simplify stmt

We can use a function pointer for this function, but then we need
to pass the state to all the possible statements. This is not a
problem, because we can ignore the parameters we are not using,
and the code of stmt will be smaller because we have only one
function call.

8l/scc,k0gaMSX/scc,8l/scc,k0gaMSX/scc,k0gaMSX/kcc,k0gaMSX/kcc,8l/scc,k0gaMSX/scc