--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/IdentifierTreeImpl.java	Wed Jul 05 21:57:11 2017 +0200
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/IdentifierTreeImpl.java	Tue Jul 12 21:18:13 2016 +0530
@@ -27,6 +27,7 @@
 package jdk.nashorn.api.tree;
 
 import jdk.nashorn.internal.ir.IdentNode;
+import jdk.nashorn.internal.ir.Module;
 
 final class IdentifierTreeImpl extends ExpressionTreeImpl implements IdentifierTree {
     private final String name;
@@ -47,6 +48,37 @@
     }
 
     @Override
+    public boolean isRestParameter() {
+        return ((IdentNode)node).isRestParameter();
+    }
+
+    @Override
+    public boolean isSuper() {
+        final IdentNode ident = (IdentNode)node;
+        return ident.isDirectSuper() || "super".equals(ident.getName());
+    }
+
+    @Override
+    public boolean isThis() {
+        return "this".equals(((IdentNode)node).getName());
+    }
+
+    @Override
+    public boolean isStar() {
+        return Module.STAR_NAME.equals(((IdentNode)node).getName());
+    }
+
+    @Override
+    public boolean isDefault() {
+        return Module.DEFAULT_NAME.equals(((IdentNode)node).getName());
+    }
+
+    @Override
+    public boolean isStarDefaultStar() {
+        return Module.DEFAULT_EXPORT_BINDING_NAME.equals(((IdentNode)node).getName());
+    }
+
+    @Override
     public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {
         return visitor.visitIdentifier(this, data);
     }