--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/ProgramPoints.java	2020-04-15 18:47:15.000000000 +0530
+++ /dev/null	2020-04-15 18:47:15.000000000 +0530
@@ -1,127 +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.codegen;
-
-import static jdk.nashorn.internal.runtime.UnwarrantedOptimismException.FIRST_PROGRAM_POINT;
-import static jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor.MAX_PROGRAM_POINT_VALUE;
-
-import java.util.HashSet;
-import java.util.Set;
-import jdk.nashorn.internal.IntDeque;
-import jdk.nashorn.internal.ir.AccessNode;
-import jdk.nashorn.internal.ir.BinaryNode;
-import jdk.nashorn.internal.ir.CallNode;
-import jdk.nashorn.internal.ir.Expression;
-import jdk.nashorn.internal.ir.FunctionNode;
-import jdk.nashorn.internal.ir.IdentNode;
-import jdk.nashorn.internal.ir.IndexNode;
-import jdk.nashorn.internal.ir.Node;
-import jdk.nashorn.internal.ir.Optimistic;
-import jdk.nashorn.internal.ir.UnaryNode;
-import jdk.nashorn.internal.ir.VarNode;
-import jdk.nashorn.internal.ir.visitor.SimpleNodeVisitor;
-
-/**
- * Find program points in the code that are needed for optimistic assumptions
- */
-class ProgramPoints extends SimpleNodeVisitor {
-
-    private final IntDeque nextProgramPoint = new IntDeque();
-    private final Set<Node> noProgramPoint = new HashSet<>();
-
-    private int next() {
-        final int next = nextProgramPoint.getAndIncrement();
-        if(next > MAX_PROGRAM_POINT_VALUE) {
-            throw new AssertionError("Function has more than " + MAX_PROGRAM_POINT_VALUE + " program points");
-        }
-        return next;
-    }
-
-    @Override
-    public boolean enterFunctionNode(final FunctionNode functionNode) {
-        nextProgramPoint.push(FIRST_PROGRAM_POINT);
-        return true;
-    }
-
-    @Override
-    public Node leaveFunctionNode(final FunctionNode functionNode) {
-        nextProgramPoint.pop();
-        return functionNode;
-    }
-
-    private Expression setProgramPoint(final Optimistic optimistic) {
-        if (noProgramPoint.contains(optimistic)) {
-            return (Expression)optimistic;
-        }
-        return (Expression)(optimistic.canBeOptimistic() ? optimistic.setProgramPoint(next()) : optimistic);
-    }
-
-    @Override
-    public boolean enterVarNode(final VarNode varNode) {
-        noProgramPoint.add(varNode.getName());
-        return true;
-    }
-
-    @Override
-    public boolean enterIdentNode(final IdentNode identNode) {
-        if (identNode.isInternal()) {
-            noProgramPoint.add(identNode);
-        }
-        return true;
-    }
-
-    @Override
-    public Node leaveIdentNode(final IdentNode identNode) {
-        if(identNode.isPropertyName()) {
-            return identNode;
-        }
-        return setProgramPoint(identNode);
-    }
-
-    @Override
-    public Node leaveCallNode(final CallNode callNode) {
-        return setProgramPoint(callNode);
-    }
-
-    @Override
-    public Node leaveAccessNode(final AccessNode accessNode) {
-        return setProgramPoint(accessNode);
-    }
-
-    @Override
-    public Node leaveIndexNode(final IndexNode indexNode) {
-        return setProgramPoint(indexNode);
-    }
-
-    @Override
-    public Node leaveBinaryNode(final BinaryNode binaryNode) {
-        return setProgramPoint(binaryNode);
-    }
-
-    @Override
-    public Node leaveUnaryNode(final UnaryNode unaryNode) {
-        return setProgramPoint(unaryNode);
-    }
-}