Prevent continuation of process instance, if end flow node is not an end event

[gclaussn]

If the end flow node of a test case is a NOT an end event that ends the process instance, the generated test case must ensure that the process instance does NOT continue. At its worst, the process instance may passes activities and sequence flows with undefined or unresolvable delegates and expressions.

When generating a test case, an information about the end flow node, if it ends the process instance, must be kept in the generated code. The BpmndtParseListener should be able to access and process this information. If required, it must set the asyncAfter property of the end flow node to true. Moreover no handleXXXAfter should be generated for the end flow node.

An end flow node ends the process instance, if it is an end event and the flow node's direct parent is the process element. Otherwise the continuation must be prevented.