Description:
------------
Using an import alias and defining the constant in the same scope leads to inconsistent error message :  Undefined constant 'C' 

C is aliased into D first. 
Then it is created.
Its creation is validated by 'echo C', which yields the right value.
'echo D' fails, mentioning that 'C' doesn't exists.



Extra note : 
+ splitting the namespace A in two (one with const, one with use) raise the same issue.
+ use and const may be in any order (use first, const first), still raise the same issue.

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

namespace A {
    use const C as D;
    
    const C = 2;
    echo C;
    echo D;
}

Expected result:
----------------
22

Actual result:
--------------
2PHP Fatal error:  Uncaught Error: Undefined constant 'C' in test.php:8
Stack trace:
#0 {main}
  thrown in test.php on line 8