* conform needs char-downcase.
* maze needs bitwise-and
* ray needs many fl procedures
* quicksort needs bignum modulo.
* scheme needs complex? and other stuff.
* simplex needs flpositive?
* slatex needs string-ci=?
* compiler needs string-downcase

* ctak crashes with a bus error.
* fibc crashes with a segfault.
* ntakl kinda slow
* string too slow
* nbody does not work

* fibfp does not terminate
* mbrot too slow
* pnpoly kinda slow
* sumfp/fpsum too slow

BEFORE:
  running stats for fibfp:
      no collections
      13316 ms elapsed cpu time
      13984 ms elapsed real time
      1433313736 bytes allocated
  running stats for mbrot:
      12145 collections
      7608 ms elapsed cpu time
      7660 ms elapsed real time
      2215766392 bytes allocated
  running stats for pnpoly:
      81 collections
      2622 ms elapsed cpu time
      2637 ms elapsed real time
      335204784 bytes allocated
  running stats for sumfp:
      no collections
      13917 ms elapsed cpu time
      30995 ms elapsed real time
      1600160040 bytes allocated
  
AFTER $fl+, $fl-, $fl*, $fl/:
  running stats for fibfp:
      343 collections
      2659 ms elapsed cpu time
      2677 ms elapsed real time
      1433318472 bytes allocated
  running stats for mbrot:
      530 collections
      2002 ms elapsed cpu time
      2030 ms elapsed real time
      2215766392 bytes allocated
  running stats for pnpoly:
      81 collections
      2127 ms elapsed cpu time
      2144 ms elapsed real time
      335204784 bytes allocated
  running stats for sumfp:
      382 collections
      1856 ms elapsed cpu time
      1890 ms elapsed real time
      1600164776 bytes allocated