Add new functions check to rayaop-loaded test

Two new assertions were added to the 'rayaop-loaded' test to check if 'method_intercept_init' and 'enable_method_intercept' functions exist. This ensures that all necessary functions for 'rayaop' are loaded and available for use.

tests/000-rayaop-loaded.phpt

@@ -4,10 +4,14 @@ RayAOP extension is loaded
 <?php
 var_dump(extension_loaded('rayaop'));
 var_dump(function_exists('method_intercept'));
+var_dump(function_exists('method_intercept_init'));
+var_dump(function_exists('enable_method_intercept'));
 var_dump(interface_exists('Ray\\Aop\\MethodInterceptorInterface'));
 
 ?>
 --EXPECT--
 bool(true)
 bool(true)
 bool(true)
+bool(true)
+bool(true)