[xtend][IDEA] Added test cases for Xtend

Change-Id: I8c6809fe2103d6780b1d3afcfc31175c913d1da8
Signed-off-by: akosyakov <anton.kosyakov@itemis.de>
[releng] EMF 2.11 in aggregated/mirrored target platforms

Signed-off-by: Dennis Huebner <dennis.huebner@itemis.de>
Merge "[xtend][IDEA] Added test cases for Xtend"