Missing cases are added

Signed-off-by: Adam Knapp <knappadam5@gmail.com>

org.eclipse.titan.designer/src/org/eclipse/titan/designer/AST/TTCN3/types/subtypes/StringSetOperation.java

@@ -198,6 +198,12 @@ public final class StringSetOperation extends StringSubtypeTreeElement {
 			case SIZE_CONSTRAINT:
 			case ALPHABET_CONSTRAINT:
 				return ((StringSetConstraint) b.complement()).evaluate();
+			case PATTERN_CONSTRAINT:
+				break;
+			case VALUE_CONSTRAINT:
+				break;
+			default:
+				break;
 			}
 		}