@@ -0,0 +1,546 @@
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.%0Apackage com.intellij.openapi.util;%0A%0Apublic class IntRef %7B%0A  private int myValue;%0A%0A  public IntRef() %7B%0A    this(0);%0A  %7D%0A%0A  public IntRef(int value) %7B%0A    myValue = value;%0A  %7D%0A%0A  public int get() %7B%0A    return myValue;%0A  %7D%0A%0A  public void set(int value) %7B%0A    myValue = value;%0A  %7D%0A%0A  public void inc() %7B%0A    myValue++;%0A  %7D%0A%0A  @Override%0A  public String toString() %7B%0A    return %22IntRef(%22 + myValue + %22)%22;%0A  %7D%0A%7D%0A

introduce IntRef for convenience