Constants referencing unknown constants shouldn't be declared

Author: kocsismate

build/gen_stub.php

@@ -1833,6 +1833,11 @@ public function getCDeclaration(iterable $allConstInfos): ?string
      */
     public function getDeclaration(iterable $allConstInfos): string
     {
+        $value = EvaluatedValue::createFromExpressionRecursively($this->value, $this->cname, $allConstInfos);
+        if ($value->isUnknownConstValue) {
+            return "";
+        }
+
         $value = EvaluatedValue::createFromExpression($this->value, $this->cname, $allConstInfos);
         if ($value->isUnknownConstValue) {
             return "";