New codegen failing test-cases

[Edward Z. Yang]

Here is the new set of failing test-cases on the shiny new branch.
I should stick the merged branch somewhere; any suggestions?

    4030(normal)
    4221(normal)
    IndTypesPerf(normal)
    T1969(normal)
    T3064(normal)
    T3294(normal)
    T3736(normal)
    T3807(normal)
    T4003(normal)
    cgrun016(normal)
    cgrun045(normal)
    cgrun051(normal)
    dph-primespj-fast(normal)
    dph-quickhull-fast(normal)
    dsrun005(normal)
    dsrun007(normal)
    dsrun008(normal)
    exceptionsrun001(normal)
    exceptionsrun002(normal)
    ffi021(normal)
    simplrun010(optc)
    strun002(optc)

Edward