Add test for Issue #89

Author: mlazdans

tests/issue89_001.phpt

@@ -0,0 +1,19 @@
+--TEST--
+Issue #89: Passing result from ibase_prepare() to ibase_fetch_*() causes segfault.
+--SKIPIF--
+<?php
+include("skipif.inc");
+?>
+--FILE--
+<?php
+
+require("interbase.inc");
+
+(function() {
+    $res = ibase_prepare('SELECT * FROM TEST1');
+    var_dump(ibase_fetch_assoc($res));
+})();
+
+?>
+--EXPECT--
+bool(false)