Check if migration was successful using initial set of unknown features

Issue-Ref: 3865
Issue-Url: https://af3-developer.fortiss.org/issues/3865

Signed-off-by: Simon Barner <barner@fortiss.org>

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/internal/.ratings

@@ -7,7 +7,7 @@ ElementCompositorService.java 98c5d27e09881e60aa4f87c1ac0c7787cdec9f7c GREEN
 LibraryPrototypeProvider.java b77eddbdca78f561ffb1233e98817be361c690ae GREEN
 LibraryService.java d22671ba820466062852c15873698adf28960d94 GREEN
 LoggingService.java da784259f7b456b54bf75c41ec268f64919ce78d GREEN
-MigrationService.java 22713e178a9648e858d6cd77f73fe77918ce5d4f YELLOW
+MigrationService.java 2f800eac9793aa736089a802bbfc2c4c1c09770d YELLOW
 PersistencyService.java 103eef642c038ef63fa49b743d803aaa3fea2724 GREEN
 PrototypeService.java 18c3db05ab11f189a9711bf241c3c7f35c954a9e GREEN
 ToolingKernelInternal.java d624a5f6b237ce993e150e2b8d1b4390e3fc8f7a GREEN

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/internal/MigrationService.java

@@ -114,7 +114,7 @@ public class MigrationService extends ObjectAwareServiceBase<IMigrationProvider>
 					}
 				}
 				for(IMigrationProvider provider : getProviders(input)) {
-					if(provider.needMigration(input, migratedFeatures)) {
+					if(provider.needMigration(input, unknownFeatures)) {
 						error(ToolingKernelActivator.getDefault(),
 								"Migrating " + input.getSaveableName() + " failed: A need for " +
 										"migration is indicated although the migration was " +

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/internal/storage/eclipse/.ratings

 AutoUndoCommandStack.java fc326adf66c6cea2354884cdc240da5f2f82689a GREEN
 EMFTransactionalCommand.java ba4b5bead9768b6ce6c955b9238cd96cb722533c GREEN
 EclipseResourceStorageService.java e29e32272286921c5e43963253902b3ba54490c7 GREEN
-ModelContext.java db1735834c85e7b508266f56463d011f2b72af0e YELLOW
+ModelContext.java db1735834c85e7b508266f56463d011f2b72af0e GREEN
 NonDirtyingEMFTransactionalCommand.java d288ebe35d22442c603496b0c917fb99a8febeea GREEN