DMN Editor does not support custom type that is a function

[jomarko]

This issue is related to the ticket #1752. The ticket references this model file:

• https://github.com/dmn-tck/tck/blob/5a40dc510f9cf9788fbc04cb4a79eb9a7c235e10/TestCases/compliance-level-3/0092-feel-lambda/0092-feel-lambda.dmn

The problem of the DMN Editor users is that they will be not able to define:

• lambda_number_returns_number because it is not a data type but a function. See what the editor show [1] vs what is the xml [2].
• bkm_014_1(abs, sqrt) will not support syntax highlight. This is for sure very minor and maybe we should not execute any action. But wanted to mention to broader audience. Please compare [3] and [4]. Good thing is, there is no red highlight neither in [3] or [4].

[1]

[2]

    <itemDefinition name="lambda_number_returns_number">
        <functionItem outputTypeRef="number">
            <parameters name="n" typeRef="number" />
        </functionItem>
    </itemDefinition>

[3]

[4]