Add test to make sure internal param default eval doesn't error

Author: nikic

ext/reflection/tests/internal_parameter_default_value/check_all.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Check that all internal parameter defaults evaluate without error
+--FILE--
+<?php
+
+function checkDefaults(ReflectionFunctionAbstract $rf) {
+    foreach ($rf->getParameters() as $param) {
+        if ($param->isDefaultValueAvailable()) {
+            try {
+                $param->getDefaultValue();
+            } catch (Error $e) {
+                echo "{$rf->getName()}: {$e->getMessage()}\n";
+            }
+        }
+    }
+}
+
+foreach (get_defined_functions()["internal"] as $func) {
+    $rf = new ReflectionFunction($func);
+    checkDefaults($rf);
+}
+
+foreach (get_declared_classes() as $class) {
+    $rc = new ReflectionClass($class);
+    foreach ($rc->getMethods() as $method) {
+        checkDefaults($method);
+    }
+}
+
+?>
+===DONE===
+--EXPECT--
+===DONE===