[mdt-ocl.dev] Indigo SR0 editors don't run on SR2

[Ed Willink <ed@xxxxxxxxxxxxx>]

Hi

Xtext 2.2.1 for (SR2) appears to have changed 'internal' APIs and so 
attempting to run OCLinEcore 3.1.1 with Xtext 2.2.1 gives editor 
instantiation failures.https://bugs.eclipse.org/bugs/show_bug.cgi?id=371574.

While this is clearly an Xtext problem, it isn't going to be fixed for 
SR2 or SR2a, we can just hope that itemis learn how many of their 
'internal' APIs are actually external and avoid the problem in the future.

Anyway it is our user's problem, so I think we need to create a 3.1.2X 
release in which we regenerate editors and raise the lower bound on 
Xtext to 2.2.1 to force compatibility. This is of course not allowed in 
an SR, so it isn't an SR as such. Is an X suffix enough, or do we want a 
longer more distinct name? Adolfo: is there any spelling that is 
particularly easy for releng?

    Regards

        Ed