Description:
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Methods being added as RUNKIT_ACC_PUBLIC seem to somehow have lost their access level when they are inspected through Reflection. 

When a class containing such a method gets extended by another class that overwrites this method and is loaded later on an error gets thrown: "Access level to C::x() must be (as in class A) or weaker"

I've found this in php 5.1.0RC6 as well in previous 5.1.0RC versions. I haven't tested with other php versions.

Reproduce code:
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// does not have a 'public' identifier in Reflection export:
class A {}
runkit_method_add ('A', 'x', '', '', RUNKIT_ACC_PUBLIC);
Reflection::export(new ReflectionMethod('A', 'x'));

// works perfectly well:
class B extends A { public function x() {} }
Reflection::export(new ReflectionMethod('B', 'x'));

// throws an error:
include('C.php'); 
// with C.php being: <?php class C extends A { public function x() {} } ?>
Reflection::export(new ReflectionMethod('C', 'x'));

Expected result:
----------------
Method [ public method x ] { @@ (...) } 
Method [ public method x ] { @@ (...) } 
Method [ public method x ] { @@ (...) } 

Actual result:
--------------
Method [ method x ] { @@ (...) } 
Method [ public method x ] { @@ (...) } 
Fatal error: Access level to C::x() must be (as in class A) or weaker in (...)