src/Fixer/ControlStructure/NoUnneededCurlyBracesFixer.php
private function isOverComplete(Tokens $tokens, $index)
    {
        static $whiteList = ['{', '}', [T_OPEN_TAG], ':', ';'];

        return $tokens[$tokens->getPrevMeaningfulToken($index)]->equalsAny($whiteList);
    }
private function isOverComplete(Tokens $tokens, $index)
    {
        static $whiteList = ['{', '}', [T_OPEN_TAG], ':', ';'];

        return $tokens[$tokens->getPrevMeaningfulToken($index)]->equalsAny($whiteList);
    }
@param Tokens $tokens
@param int    $index  index of `{` token

@return bool