phan-taint-check (aka SecurityCheckPlugin) doesn't recognize
Sanitizer::stripAllTags' output as tainted in certain situations.
Adding a @return-taint of tainted to ensure that it does, which
may result in the reporting of more issues.
Bug: T230234
Change-Id: I357c168417a26882c7c460df20f36ec2be401096
*
* @param string $html HTML fragment
* @return string
+ * @return-taint tainted
*/
static function stripAllTags( $html ) {
// Use RemexHtml to tokenize $html and extract the text