Circuit arguments don't include all possible classical argument types

[ecpeterson]

The trinary-classical-instruction method specialization of instantiate-instruction is essentially unusable (and untested) except as a pass-through. Specifically, the typing system in Quil is too awkward to allow for programs like

DECLARE values INT[80]
DEFCIRCUIT STORE-CIRCUIT a b c:
    STORE a b c

STORE-CIRCUIT values 20 values[10]

where it freaks out about passing the naked value 20 in as an argument (and probably parses the first argument values as the reference values[0] rather than as the region name).