Choice literal-bignums

The Report recommends, but does not require, that Schemes support exact integers of "practically unlimited size and precision". Some Schemes coerce large integers to inexact numbers instead, and others allow overflow. Oddly, the results can differ depending on whether the integers are input as literals or computed within the program. Compare computed-bignums.

This choice is tested for by running

100000000000000000000000000000000000000000000000000

in each Scheme.