cpn manual parser

[Lena Ernstsen]

There are multiple problems with the manual parser:

If we say that we have the product color type consisting of a cyclic enumeration (p, s) and a range (1-5)

1.
In transport arc dialog, when manually parsing "4'(s, 1) + 1'(p, 2)" the expression is parsed, but the everything after the + operators is removed. No warning message is given.

2.
In normal arc dialog, when manually parsing "1's++ * 1's", the the expression is parsed, but the everything after the * operators is removed. No warning message is given.

3.
In the transition dialog, it is possible to construct the following guard "!(1 = s)", but when manually parsing it, it fails because s is not comparable with 1.
This is a problem with the dialog, as it is allowed to compare two different types.