Link to PHP internals discussion about new Foo(...)

Author: thekid

src/main/php/lang/ast/emit/PHP.class.php

@@ -1105,6 +1105,7 @@ protected function emitCallableNew($result, $callable) {
     $t= $result->temp();
     $result->out->write("fn(...{$t}) => ");
 
+    // See https://externals.io/message/129329
     $callable->type->arguments= [new UnpackExpression(new Variable(substr($t, 1)), $callable->line)];
     $this->emitOne($result, $callable->type);
     $callable->type->arguments= null;

src/test/php/lang/ast/unittest/emit/CallableSyntaxTest.class.php

@@ -6,6 +6,7 @@
 /**
  * Tests for first-class callable syntax
  *
+ * @see   https://externals.io/message/129329
  * @see   https://wiki.php.net/rfc/fcc_in_const_expr
  * @see   https://wiki.php.net/rfc/first_class_callable_syntax#proposal
  */