trim environments again
trim environments again

this is only important in the case of if, as call just throws the
current environtment away (except maybe for some weird primitive?)

vishesh/pycket,cderici/pycket,pycket/pycket,vishesh/pycket,krono/pycket,pycket/pycket,samth/pycket,cderici/pycket,cderici/pycket,magnusmorton/pycket,krono/pycket,samth/pycket,pycket/pycket,krono/pycket,magnusmorton/pycket,vishesh/pycket,samth/pycket,magnusmorton/pycket