fixup! Support first-class callables in const-expressions

Author: TimWolla

Zend/tests/closure_const_expr/fcc/namespace_004.phpt

@@ -0,0 +1,68 @@
+--TEST--
+Allow defining FCC in const expressions in a namespace with function matching a global function later.
+--FILE--
+<?php
+
+namespace Foo;
+
+function foo(\Closure $c = strrev(...)) {
+    $d = strrev(...);
+    var_dump($c);
+    var_dump($c("abc"));
+    var_dump($d);
+    var_dump($d("abc"));
+}
+
+
+foo();
+
+if (random_int(1, 2) > 0) {
+    function strrev(string $value) {
+        return 'not the global one';
+    }
+}
+
+foo();
+
+?>
+--EXPECTF--
+object(Closure)#1 (2) {
+  ["function"]=>
+  string(6) "strrev"
+  ["parameter"]=>
+  array(1) {
+    ["$string"]=>
+    string(10) "<required>"
+  }
+}
+string(3) "cba"
+object(Closure)#2 (2) {
+  ["function"]=>
+  string(6) "strrev"
+  ["parameter"]=>
+  array(1) {
+    ["$string"]=>
+    string(10) "<required>"
+  }
+}
+string(3) "cba"
+object(Closure)#2 (2) {
+  ["function"]=>
+  string(10) "strrev"
+  ["parameter"]=>
+  array(1) {
+    ["$string"]=>
+    string(10) "<required>"
+  }
+}
+string(18) "cba"
+object(Closure)#1 (2) {
+  ["function"]=>
+  string(6) "strrev"
+  ["parameter"]=>
+  array(1) {
+    ["$string"]=>
+    string(10) "<required>"
+  }
+}
+string(3) "cba"