Let inlinefun inline everything non-representable.

Let inlinefun inline everything non-representable.

This changes its name to inlinenonrep and makes it inline everything that
is not representable (which helps in particular for dictionary
construction expressions...).

I've not yet changed the conditions in various other transforms, so if
something silly would happen like having a dictionary as the value or
scrutinee of a case of let expression, things might go into an infinite
loop.

Also, since HTypes are generated very often now, things are really
starting to slow down...