[java8] Added tests for using java language features in transformations.

test/transform/resource/after-ecj/ValLambda.java

@@ -0,0 +1,19 @@
+class ValLambda {
+  ValLambda() {
+    super();
+  }
+  public void easyLambda() {
+    final @lombok.val java.lang.Runnable foo = (Runnable) () -> {
+};
+  }
+  public void easyIntersectionLambda() {
+    final @lombok.val java.lang.Object foo = (Runnable & java.io.Serializable) () -> {
+};
+    final @lombok.val java.lang.Object bar = (java.io.Serializable & Runnable) () -> {
+};
+  }
+  public void easyLubLambda() {
+    final @lombok.val java.lang.Runnable foo = ((System.currentTimeMillis() > 0) ? (Runnable) () -> {
+} : (Runnable) System.out::println);
+  }
+}