defcollector stuff again

Author: BoxyUwU

tests/ui/const-generics/mgca/struct_expr_with_macros.rs

@@ -7,7 +7,7 @@
 #![expect(incomplete_features)]
 
 macro_rules! const_block {
-    ($e:expr) => { const { 
+    ($e:expr) => { const {
         $e
     } }
 }