Bug 449113 - Some plugins broken under IE10

* Fix bad regex escaping: `\xA0` and `\uFFFF` need to be double-backslash escaped
diff --git a/bundles/org.eclipse.orion.client.editor/web/orion/editor/stylers/application_javascript/syntax.js b/bundles/org.eclipse.orion.client.editor/web/orion/editor/stylers/application_javascript/syntax.js
index a63751d..44e2a92 100644
--- a/bundles/org.eclipse.orion.client.editor/web/orion/editor/stylers/application_javascript/syntax.js
+++ b/bundles/org.eclipse.orion.client.editor/web/orion/editor/stylers/application_javascript/syntax.js
@@ -98,7 +98,7 @@
 				 * http://stackoverflow.com/questions/2008279/validate-a-javascript-function-name/2008444#2008444
 				 * was referenced in the composition of the "begin" pattern below.
 				 */
-				begin: "(function)(\\s+[_$a-zA-Z\\xA0-\\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)?\\s*\\(", //$NON-NLS-0$
+				begin: "(function)(\\s+[_$a-zA-Z\\xA0-\\uFFFF][_$a-zA-Z0-9\\xA0-\\uFFFF]*)?\\s*\\(", //$NON-NLS-0$
 				end: "\\)", //$NON-NLS-0$
 				captures: {
 					1: {name: "keyword.operator.js"}, //$NON-NLS-0$