Fix real to integer conversion.

Conversion of reals to ints via intt() now checks fitting the result into int.
8 jobs for master in 4 minutes and 6 seconds
Status Job ID Name Coverage
  Configure
passed #4781
mac
configure:mac

00:00:31

passed #4782
windows
configure:win32

00:00:26

 
  Build
passed #4784
mac
build:mac

00:02:33

passed #4783
windows
build:win32

00:01:50

 
  Dist
passed #4786
mac
dist:mac

00:00:22

passed #4785
windows
dist:win32

00:00:19

 
  Pack
passed #4788
mac
pack:mac

00:00:36

passed #4787
windows
pack:win32

00:00:28