[test] Just cleaning up tests that fail on javac8/6 and ecj.

These tests should fail on j6/8 as they use newer features; the test files lacked proper markings so they weren't being skipped.

test/transform/resource/after-delombok/ValInvalidParameter.java

@@ -1,3 +1,4 @@
+//version 7:8
 public class ValInvalidParameter {
 	public void val() {
 		final java.lang.Object a = a(new NonExistingClass());