Add test script for #57 (segfaults in drupal7)

tests/issue0057.phpt

@@ -0,0 +1,38 @@
+--TEST--
+ISSUE #57 (segfaults in drupal7)
+--INI--
+zend_optimizerplus.enable=1
+zend_optimizerplus.enable_cli=1
+zend_optimizerplus.optimization_level=-1
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+
+class ZException extends Exception {
+}
+
+function dummy($query) {
+    try {
+        switch ($query) {
+            case 1;
+            break;
+            case 2;
+            break;
+        default:
+            throw new Exception('exception');
+        }
+    } catch (ZException $e) {
+        return NULL;
+    }
+}
+
+try {
+    dummy(0);
+} catch (Exception $e) {
+    echo $e->getMessage();
+}
+
+?>
+--EXPECT--
+exception