Further fix (5.3 only) for #1218

Author: gsherwood

CodeSniffer/Tokenizers/PHP.php

@@ -732,6 +732,7 @@ public function tokenizeString($string, $eolChar='\n')
                 && $token[0] === T_STRING
                 && strtolower($token[1]) === 'trait'
                 && $tokens[($stackPtr - 1)][0] !== T_OBJECT_OPERATOR
+                && $tokens[($stackPtr - 1)][0] !== T_PAAMAYIM_NEKUDOTAYIM
             ) {
                 $finalTokens[$newStackPtr] = array(
                                               'content' => $token[1],