--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/ReplaceCompileUnits.java	2020-04-15 18:47:16.000000000 +0530
+++ /dev/null	2020-04-15 18:47:16.000000000 +0530
@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2014, 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.codegen;
-
-import java.util.ArrayList;
-import java.util.List;
-import jdk.nashorn.internal.ir.CompileUnitHolder;
-import jdk.nashorn.internal.ir.FunctionNode;
-import jdk.nashorn.internal.ir.LiteralNode;
-import jdk.nashorn.internal.ir.LiteralNode.ArrayLiteralNode;
-import jdk.nashorn.internal.ir.Node;
-import jdk.nashorn.internal.ir.ObjectNode;
-import jdk.nashorn.internal.ir.Splittable;
-import jdk.nashorn.internal.ir.visitor.SimpleNodeVisitor;
-
-/**
- * Base class for a node visitor that replaces {@link CompileUnit}s in {@link CompileUnitHolder}s.
- */
-abstract class ReplaceCompileUnits extends SimpleNodeVisitor {
-
-    /**
-     * Override to provide a replacement for an old compile unit.
-     * @param oldUnit the old compile unit to replace
-     * @return the compile unit's replacement.
-     */
-    abstract CompileUnit getReplacement(final CompileUnit oldUnit);
-
-    CompileUnit getExistingReplacement(final CompileUnitHolder node) {
-        final CompileUnit oldUnit = node.getCompileUnit();
-        assert oldUnit != null;
-
-        final CompileUnit newUnit = getReplacement(oldUnit);
-        assert newUnit != null;
-
-        return newUnit;
-    }
-
-    @Override
-    public Node leaveFunctionNode(final FunctionNode node) {
-        return node.setCompileUnit(lc, getExistingReplacement(node));
-    }
-
-    @Override
-    public Node leaveLiteralNode(final LiteralNode<?> node) {
-        if (node instanceof ArrayLiteralNode) {
-            final ArrayLiteralNode aln = (ArrayLiteralNode)node;
-            if (aln.getSplitRanges() == null) {
-                return node;
-            }
-            final List<Splittable.SplitRange> newArrayUnits = new ArrayList<>();
-            for (final Splittable.SplitRange au : aln.getSplitRanges()) {
-                newArrayUnits.add(new Splittable.SplitRange(getExistingReplacement(au), au.getLow(), au.getHigh()));
-            }
-            return aln.setSplitRanges(lc, newArrayUnits);
-        }
-        return node;
-    }
-
-    @Override
-    public Node leaveObjectNode(final ObjectNode objectNode) {
-        final List<Splittable.SplitRange> ranges = objectNode.getSplitRanges();
-        if (ranges != null) {
-            final List<Splittable.SplitRange> newRanges = new ArrayList<>();
-            for (final Splittable.SplitRange range : ranges) {
-                newRanges.add(new Splittable.SplitRange(getExistingReplacement(range), range.getLow(), range.getHigh()));
-            }
-            return objectNode.setSplitRanges(lc, newRanges);
-        }
-        return super.leaveObjectNode(objectNode);
-    }
-}