added supporting for @val variables inside lambdas.

test/transform/resource/before/ValInLambda.java

@@ -0,0 +1,21 @@
+// version 8:
+
+import lombok.val;
+
+class ValInLambda {
+    Runnable foo = (Runnable) () -> {
+        val i = 1;
+    };
+
+    public void easyLambda() {
+        Runnable foo = (Runnable) () -> {
+            val i = 1;
+        };
+    }
+
+    public void easyIntersectionLambda() {
+        Runnable foo = (Runnable) () -> {
+            val i = 1;
+        };
+    }
+}