QA: Fixed bugs #12730: Now the generated __destruct not fall in a inf…

…inite loop (second fix of the bug, this time with a more efficient solution).

git-svn-id: http://svn.php.net/repository/pear/packages/PHP_ParserGenerator/trunk@302206 c90b9560-bf6c-de11-be94-00142212c4b1

Lempar.php

@@ -245,7 +245,7 @@ static function PrintTrace()
     /**
      * @var int
      */
-    public $yyidx;                    /* Index of top element in stack */
+    public $yyidx = -1;                    /* Index of top element in stack */
     /**
      * @var int
      */
@@ -347,7 +347,7 @@ function yy_pop_parser_stack()
      */
     function __destruct()
     {
-        while ($this->yystack !== Array()) {
+        while ($this->yyidx >= 0) {
             $this->yy_pop_parser_stack();
         }
         if (is_resource(self::$yyTraceFILE)) {