Description:
------------
'MyClass::class' construction works different inside and outside of assertion if namespace given.

Test script:
---------------
<?php

namespace Test; // Without namespace works fine

assert_options(ASSERT_ACTIVE, 1);

class A { }

class B extends A { }

$test1 = $test2 = $name_a = $name_b = null;

$test1 = is_subclass_of(B::class, A::class);

assert('($test2 = is_subclass_of(B::class, A::class)) || 1');

assert('($name_a = A::class) || 1');
assert('($name_b = B::class) || 1');

var_dump($test1, $test2);

var_dump(A::class, $name_a);
var_dump(B::class, $name_b);

Expected result:
----------------
bool(true)
bool(true)
string(6) "Test\A"
string(6) "Test\A"
string(6) "Test\B"
string(6) "Test\B"


Actual result:
--------------
bool(true)
bool(false)
string(6) "Test\A"
string(1) "A"
string(6) "Test\B"
string(1) "B"