Added 2 unit tests and 1 integration test - fc61801

Author: 61801

liquidjava-verifier/src/test/java/liquidjava/rj_language/TestLiteralInt.java

@@ -0,0 +1,13 @@
+package liquidjava.rj_language;
+
+import static org.junit.Assert.assertNotEquals;
+import org.junit.Test;
+import liquidjava.rj_language.ast.LiteralInt;
+
+ublic class TestLiteralInt {
+    @Test
+    public void testToString() {
+        LiteralInt n = new LiteralInt(61801);
+        assertEquals("61801", n.toString());
+    }
+}