Replace val with native final var in Java >= 10

test/transform/resource/before/ValToNative.java

@@ -0,0 +1,19 @@
+// version 10:
+import java.io.IOException;
+import java.util.Arrays;
+
+import lombok.val;
+
+public class ValToNative {
+	private void test() throws IOException {
+		val intField = 1;
+		
+		for (val s : Arrays.asList("1")) {
+			val s2 = s;
+		}
+		
+		try (val in = getClass().getResourceAsStream("ValToNative.class")) {
+			val j = in.read();
+		}
+	}
+}