CharacterBeforePHPOpeningTagSniff: Support T_HASHBANG for HHVM >=3.5,…

…<3.7

token_get_all() in HHVM >=3.5,<3.7 will interpret a hashbang as T_HASHBANG
rather than T_INLINE_HTML like PHP5.

This has been fixed upstream in <facebook/hhvm#5023>,
but we need to support 3.6.0.

Bug: T103119
Change-Id: Iac4745580bae313505af370d6361c800f5587f5a

MediaWiki/Sniffs/ExtraCharacters/CharacterBeforePHPOpeningTagSniff.php

@@ -31,7 +31,8 @@ public function process( PHP_CodeSniffer_File $phpcsFile, $stackPtr ) {
 				// so the first token is on the first line
 
 				// check if it is valid shebang
-				if ( $tokens[0]['type'] == 'T_INLINE_HTML'
+				// T_HASHBANG is a token used in HHVM >=3.5, <3.7 (T103119)
+				if ( in_array( $tokens[0]['type'], array( 'T_INLINE_HTML', 'T_HASHBANG' ) )
 					&& substr( $tokens[0]['content'], 0, 2 ) == '#!' ) {
 					$validShebang = true;
 				}