--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/ReturnNode.java	2020-04-15 18:48:03.000000000 +0530
+++ /dev/null	2020-04-15 18:48:03.000000000 +0530
@@ -1,133 +0,0 @@
-/*
- * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.nashorn.internal.ir;
-
-import static jdk.nashorn.internal.parser.TokenType.RETURN;
-import static jdk.nashorn.internal.parser.TokenType.YIELD;
-
-import jdk.nashorn.internal.ir.annotations.Immutable;
-import jdk.nashorn.internal.ir.visitor.NodeVisitor;
-
-/**
- * IR representation for RETURN or YIELD statements.
- */
-@Immutable
-public class ReturnNode extends Statement {
-    private static final long serialVersionUID = 1L;
-
-    /** Optional expression. */
-    private final Expression expression;
-
-    /**
-     * Constructor
-     *
-     * @param lineNumber line number
-     * @param token      token
-     * @param finish     finish
-     * @param expression expression to return
-     */
-    public ReturnNode(final int lineNumber, final long token, final int finish, final Expression expression) {
-        super(lineNumber, token, finish);
-        this.expression = expression;
-    }
-
-    private ReturnNode(final ReturnNode returnNode, final Expression expression) {
-        super(returnNode);
-        this.expression = expression;
-    }
-
-    @Override
-    public boolean isTerminal() {
-        return true;
-    }
-
-    /**
-     * Return true if is a RETURN node.
-     * @return true if is RETURN node.
-     */
-    public boolean isReturn() {
-        return isTokenType(RETURN);
-    }
-
-    /**
-     * Check if this return node has an expression
-     * @return true if not a void return
-     */
-    public boolean hasExpression() {
-        return expression != null;
-    }
-
-    /**
-     * Return true if is a YIELD node.
-     * @return TRUE if is YIELD node.
-     */
-    public boolean isYield() {
-        return isTokenType(YIELD);
-    }
-
-    @Override
-    public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
-        if (visitor.enterReturnNode(this)) {
-            if (expression != null) {
-                return visitor.leaveReturnNode(setExpression((Expression)expression.accept(visitor)));
-            }
-            return visitor.leaveReturnNode(this);
-        }
-
-        return this;
-    }
-
-
-    @Override
-    public void toString(final StringBuilder sb, final boolean printType) {
-        sb.append(isYield() ? "yield" : "return");
-        if (expression != null) {
-            sb.append(' ');
-            expression.toString(sb, printType);
-        }
-    }
-
-    /**
-     * Get the expression this node returns
-     * @return return expression, or null if void return
-     */
-    public Expression getExpression() {
-        return expression;
-    }
-
-    /**
-     * Reset the expression this node returns
-     * @param expression new expression, or null if void return
-     * @return new or same return node
-     */
-    public ReturnNode setExpression(final Expression expression) {
-        if (this.expression == expression) {
-            return this;
-        }
-        return new ReturnNode(this, expression);
-    }
-
-}