src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/IndexNode.java

@@ -45,16 +45,17 @@
      * @param finish  finish
      * @param base    base node for access
      * @param index   index for access
      */
     public IndexNode(final long token, final int finish, final Expression base, final Expression index) {
-        super(token, finish, base, false);
+        super(token, finish, base, false, false);
         this.index = index;
     }
 
-    private IndexNode(final IndexNode indexNode, final Expression base, final Expression index, final boolean isFunction, final Type type, final int programPoint) {
-        super(indexNode, base, isFunction, type, programPoint);
+    private IndexNode(final IndexNode indexNode, final Expression base, final Expression index, final boolean isFunction,
+                      final Type type, final int programPoint, final boolean isSuper) {
+        super(indexNode, base, isFunction, type, programPoint, isSuper);
         this.index = index;
     }
 
     @Override
     public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {

@@ -99,11 +100,11 @@
 
     private IndexNode setBase(final Expression base) {
         if (this.base == base) {
             return this;
         }
-        return new IndexNode(this, base, index, isFunction(), type, programPoint);
+        return new IndexNode(this, base, index, isFunction(), type, programPoint, isSuper());
     }
 
     /**
      * Set the index expression for this node
      * @param index new index expression

@@ -111,32 +112,40 @@
      */
     public IndexNode setIndex(final Expression index) {
         if(this.index == index) {
             return this;
         }
-        return new IndexNode(this, base, index, isFunction(), type, programPoint);
+        return new IndexNode(this, base, index, isFunction(), type, programPoint, isSuper());
     }
 
     @Override
     public IndexNode setType(final Type type) {
         if (this.type == type) {
             return this;
         }
-        return new IndexNode(this, base, index, isFunction(), type, programPoint);
+        return new IndexNode(this, base, index, isFunction(), type, programPoint, isSuper());
     }
 
     @Override
     public IndexNode setIsFunction() {
         if (isFunction()) {
             return this;
         }
-        return new IndexNode(this, base, index, true, type, programPoint);
+        return new IndexNode(this, base, index, true, type, programPoint, isSuper());
     }
 
     @Override
     public IndexNode setProgramPoint(final int programPoint) {
         if (this.programPoint == programPoint) {
             return this;
         }
-        return new IndexNode(this, base, index, isFunction(), type, programPoint);
+        return new IndexNode(this, base, index, isFunction(), type, programPoint, isSuper());
+    }
+
+    @Override
+    public IndexNode setIsSuper() {
+        if (isSuper()) {
+            return this;
+        }
+        return new IndexNode(this, base, index, isFunction(), type, programPoint, true);
     }
 }