hashtable doesn't accept bignum hash value

[Takashi Kato]

This raises an error.

(import (rnrs))

(let ((ht (make-hashtable (lambda (bv)
                            (bytevector-uint-ref bv 0 (endianness big) 16))
                          equal?)))
  (hashtable-set!
   ht #vu8(79 191 14 146 23 193 17 228 162 104 37 249 166 72 46 205)  #t))

[Takashi Kato]

Modified to check returned value and use eqv-hash so that bignum won't overflow. (Fixes #50)

→ <<cset d2d583ece0d9>>