Bug 117601 [Undo] - update org.eclipse.core.commands.operations to use new equinox common utils
org.eclipse.core.commands.operations.DefaultOperationHistory - synchronizes its own listener list org.eclipse.core.commands.internal.util. - implements its own Assert. These should be updated to use the new support in org.eclipse.equinox.common
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/DefaultOperationHistory.java
/**
	 * This flag can be set to <code>true</code> if the history should print
	 * information to <code>System.out</code> whenever notifications about
	 * changes to the history occur. This flag should be used for debug purposes
	 * only.
	 */
	public static boolean DEBUG_OPERATION_HISTORY_NOTIFICATION = false;
	/**
	 * This flag can be set to <code>true</code> if the history should print
	 * information to <code>System.out</code> whenever an unexpected condition
	 * arises. This flag should be used for debug purposes only.
	 */
	public static boolean DEBUG_OPERATION_HISTORY_UNEXPECTED = false;
	/**
	 * This flag can be set to <code>true</code> if the history should print
	 * information to <code>System.out</code> whenever an undo context is
	 * disposed. This flag should be used for debug purposes only.
	 */
	public static boolean DEBUG_OPERATION_HISTORY_DISPOSE = false;
	/**
	 * This flag can be set to <code>true</code> if the history should print
	 * information to <code>System.out</code> during the open/close sequence.
	 * This flag should be used for debug purposes only.
	 */
	public static boolean DEBUG_OPERATION_HISTORY_OPENOPERATION = false;
	/**