[Bug #1647] fdiv $B$,L/$KCY$/$J$k$3$H$,$"$k(B

Bug #1647: fdiv e$B$,L/$KCY$/$J$k$3$H$,$"$ke(B
http://redmine.ruby-lang.org/issues/show/1647

e$B5/I<<Te(B: tadayoshi funaba
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
ruby -v: ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-linux]

fdiv e$B$,L/$KCY$/$J$k$3$H$,$"$k!#e(B
e$B$=$7$F!"7k2L$,e(B 0.0 e$B$K$J$j$^$9!#e(B

main@187-20090612> (Float::MAX.to_i*100).fdiv(1)
#=> 0.0