--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/types/BooleanType.java	2020-04-15 18:47:23.000000000 +0530
+++ /dev/null	2020-04-15 18:47:23.000000000 +0530
@@ -1,137 +0,0 @@
-/*
- * Copyright (c) 2010, 2016, 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.types;
-
-import static jdk.internal.org.objectweb.asm.Opcodes.I2D;
-import static jdk.internal.org.objectweb.asm.Opcodes.I2L;
-import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_0;
-import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_1;
-import static jdk.internal.org.objectweb.asm.Opcodes.ILOAD;
-import static jdk.internal.org.objectweb.asm.Opcodes.IRETURN;
-import static jdk.internal.org.objectweb.asm.Opcodes.ISTORE;
-import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup;
-import static jdk.nashorn.internal.runtime.JSType.UNDEFINED_INT;
-
-import jdk.internal.org.objectweb.asm.MethodVisitor;
-import jdk.nashorn.internal.codegen.CompilerConstants;
-
-/**
- * The boolean type class
- */
-public final class BooleanType extends Type {
-    private static final long serialVersionUID = 1L;
-
-    private static final CompilerConstants.Call VALUE_OF = staticCallNoLookup(Boolean.class, "valueOf", Boolean.class, boolean.class);
-    private static final CompilerConstants.Call TO_STRING = staticCallNoLookup(Boolean.class, "toString", String.class, boolean.class);
-
-    /**
-     * Constructor
-     */
-    protected BooleanType() {
-        super("boolean", boolean.class, 1, 1);
-    }
-
-    @Override
-    public Type nextWider() {
-        return INT;
-    }
-
-    @Override
-    public Class<?> getBoxedType() {
-        return Boolean.class;
-    }
-
-    @Override
-    public char getBytecodeStackType() {
-        return 'I';
-    }
-
-    @Override
-    public Type loadUndefined(final MethodVisitor method) {
-        method.visitLdcInsn(UNDEFINED_INT);
-        return BOOLEAN;
-    }
-
-    @Override
-    public Type loadForcedInitializer(final MethodVisitor method) {
-        method.visitInsn(ICONST_0);
-        return BOOLEAN;
-    }
-
-    @Override
-    public void _return(final MethodVisitor method) {
-        method.visitInsn(IRETURN);
-    }
-
-    @Override
-    public Type load(final MethodVisitor method, final int slot) {
-        assert slot != -1;
-        method.visitVarInsn(ILOAD, slot);
-        return BOOLEAN;
-    }
-
-    @Override
-    public void store(final MethodVisitor method, final int slot) {
-        assert slot != -1;
-        method.visitVarInsn(ISTORE, slot);
-    }
-
-    @Override
-    public Type ldc(final MethodVisitor method, final Object c) {
-        assert c instanceof Boolean;
-        method.visitInsn((Boolean) c ? ICONST_1 : ICONST_0);
-        return BOOLEAN;
-    }
-
-    @Override
-    public Type convert(final MethodVisitor method, final Type to) {
-        if (isEquivalentTo(to)) {
-            return to;
-        }
-
-        if (to.isNumber()) {
-            method.visitInsn(I2D);
-        } else if (to.isLong()) {
-            method.visitInsn(I2L);
-        } else if (to.isInteger()) {
-            //nop
-        } else if (to.isString()) {
-            invokestatic(method, TO_STRING);
-        } else if (to.isObject()) {
-            invokestatic(method, VALUE_OF);
-        } else {
-            throw new UnsupportedOperationException("Illegal conversion " + this + " -> " + to);
-        }
-
-        return to;
-    }
-
-    @Override
-    public Type add(final MethodVisitor method, final int programPoint) {
-        // Adding booleans in JavaScript is perfectly valid, they add as if false=0 and true=1
-        return Type.INT.add(method, programPoint);
-    }
-}