constructor hygiene not catch node either

tests/edu/caltech/cs2/helpers/Inspection.java

@@ -106,8 +106,9 @@ public class Inspection {
       CONSTRUCTOR_COLLECTOR.visit(cu, constructors);
       int nonThisConstructors = 0;
       for (ConstructorDeclaration c : constructors) {
-//        if is iterator constructor, should not count
-        if (c.toString().toLowerCase(Locale.ROOT).contains("iterator")) {
+//        if is iterator or node constructor, should not count
+        String full = c.toString().toLowerCase(Locale.ROOT);
+        if (full.contains("iterator") || full.contains("node")) {
           continue;
         }
         BlockStmt body = c.getBody();