Description:
------------
* Resolution of self:: at compile-time for constants currently doesn't seem to happen in PHP 7
* The run-time resolution uses the wrong self:: scope in PHP 7
* The scope is also wrong in PHP 5, but in a different way (depending on whether A:: or B:: is used).

Test script:
---------------
<?php
class A {
	const myConst = "const in A";
	const myDynConst = self::myConst;
}

class B extends A {
	const myConst = "const in B";
}

var_dump(B::myDynConst);
var_dump(A::myDynConst);

Expected result:
----------------
string(10) "const in A"
string(10) "const in A"

Actual result:
--------------
PHP 7:
string(10) "const in B"
string(10) "const in B"

PHP 5:
string(10) "const in A"
string(10) "const in B"