Add test case showing unpinned local functions are not considered existing

Author: Girgias

Zend/tests/autoloading/function/function_exists_unpinned_local_function_returns_false.phpt

@@ -0,0 +1,31 @@
+--TEST--
+function_exist of local function returns false even with global one defined
+--FILE--
+<?php
+namespace {
+    function loader($name) {
+        echo "function loader called with $name\n";
+    }
+
+    autoload_register_function('loader');
+
+    function bar() {
+        echo "I am bar in global namespace.\n";
+    }
+}
+
+namespace foo {
+    if (!function_exists(__NAMESPACE__.'\\bar')) {
+        function bar() {
+            echo "I'm bar in foo namespace";
+        }
+    }
+
+    bar();
+}
+
+?>
+--EXPECT--
+function loader called with foo\function_exists
+function loader called with foo\bar
+I'm bar in foo namespace