RuleModeler crashes when a java class name without package is used in an Assignment

[jvanek]

If a rule is in a d2w.user file wher an Assignment is done to a java class without package (ie without any . in its name) the RuleModeler crashes.

The fix is to change the line 139 in Assigment.m from:

unsigned lastDotIndex = [aClassName rangeOfString:@"." options:NSBackwardsSearch].location;

to

NSInteger lastDotIndex = [aClassName rangeOfString:@"." options:NSBackwardsSearch].location;

as the unsigned int is out of limits of a NSInteger, the test below NSNotFound doesn't match and the code crashes.