Bug 173902 remove EXPERIMENTAL markings from 3.3 IDE Undo API
Need to remove the EXPERIMENTAL javadoc from the new API I introduced in 3.3. See org.eclipse.ui.ide.undo org.eclipse.jface.fieldassist
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/WorkspaceUndoUtil.java
}
		return multi;
	}
	/*
	 * Return the workspace.
	 */
	private static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}
	/*
	 * Return the workspace root.
	 */
	private static IWorkspaceRoot getWorkspaceRoot() {
		return getWorkspace().getRoot();
	}
	/*
	 * Validate the destination file if it is read-only and additionally the
	 * source file if both are read-only. Returns true if both files could be
	 * made writeable.
	 */
	private static boolean validateEdit(IFile source, IFile destination,
			Shell shell) {
		if (destination.isReadOnly()) {
			IWorkspace workspace = WorkspaceUndoUtil.getWorkspace();
			IStatus status;
			if (source.isReadOnly()) {
				status = workspace.validateEdit(new IFile[] { source,
						destination }, shell);
			} else {
				status = workspace.validateEdit(new IFile[] { destination },