Bug 123989 Should ResourceChangeValidator#validateChange take a progress monitor
Since the validation might take some time it might make sense to pass a progress monitor into validateChange.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/IDE.java
* used.</li>
	 * <li>The workbench editor registry is consulted to determine if an editor
	 * extension has been registered for the file type. If so, an instance of
	 * the editor extension is opened on the file. See
	 * <code>IEditorRegistry.getDefaultEditor(String)</code>.</li>
	 * <li>The operating system is consulted to determine if an in-place
	 * component editor is available (e.g. OLE editor on Win32 platforms).</li>
	 * <li>The operating system is consulted to determine if an external editor
	 * is available.</li>
	 * </ol>
	 * </p>
	 * 
	 * @param name
	 *            the file name
	 * @param inferContentType
	 *            attempt to infer the content type from the file name if this
	 *            is <code>true</code>
	 * @return an editor descriptor, appropriate for opening the file
	 * @throws PartInitException
	 *             if no editor can be found
	 * @since 3.1
	 */
	public static IEditorDescriptor getEditorDescriptor(String name, boolean inferContentType)
			throws PartInitException {
		if (name == null) {
			throw new IllegalArgumentException();
		}
		IContentType contentType = inferContentType ? Platform
				.getContentTypeManager().findContentTypeFor(name) : null;
		IEditorRegistry editorReg = PlatformUI.getWorkbench()