system: linux dmd-0.102

code:
#     char[] array = new char[4];
#     char letter = 'a';
#     array[0..4]=letter;
#     assert(array[0]=='a');
#     assert(array[1]=='a');
#     assert(array[2]=='a');
#     assert(array[3]=='a');

This code runs ok if the compiler flag "-O" is used but fails without.

Based on Stewart Gordons report: <ci94i9$1352$2@digitaldaemon.com> / digitalmars.D.bugs:1849

test case:
svn://svn.kuehne.cn/dstress/run/slice_03.d

Thomas