[IDEA] Cleaned up IElementTypeProvider interface; fixed sdomain test
cases
[IDEA] Fixed Xtend's test cases by switching to
LightCodeInsightFixtureTestCase

Change-Id: I7c2330e161412baaa903e3b188dd411be0352e94
Signed-off-by: akosyakov <anton.kosyakov@itemis.de>
Make ReconcilingUnitOfWork injectable
https://bugs.eclipse.org/bugs/show_bug.cgi?id=452515

Change-Id: I34037c8946e7008f87cb8e03e83e8f20eacc4b70
Signed-off-by: Christian Dietrich <christian.dietrich@itemis.de>