#KT-492 Fixed
For Byte, Char and Short ranges, promote the type of the loop parameter to int
to avoid overflows. For Int and Long ranges at the end of the loop over a
progression we now check if the new (incremented) value of the loop parameter
is greater than the old value iff increment > 0
#KT-492 In Progress
For Byte, Char and Short explicit casting from Int is removed -- loop parameter
is already stored in an Int anyway. For Int and Long comparison "i < end" at
the beginning of the loop is replaced to "i != end" at the end of the loop + a
special check for an empty loop
Ilya Ryzhenkov