Add back an assertion

crates/hir_expand/src/fixup.rs

@@ -150,7 +150,6 @@ mod tests {
     #[track_caller]
     fn check(ra_fixture: &str, mut expect: Expect) {
         let parsed = syntax::SourceFile::parse(ra_fixture);
-        eprintln!("parse: {:#?}", parsed.syntax_node());
         let fixups = super::fixup_syntax(&parsed.syntax_node());
         let (mut tt, tmap, _) = mbe::syntax_node_to_token_tree_with_modifications(
             &parsed.syntax_node(),

crates/mbe/src/syntax_bridge.rs

@@ -192,7 +192,9 @@ struct StackEntry {
             continue;
         }
         let tt = if kind.is_punct() && kind != UNDERSCORE {
-            // assert_eq!(range.len(), TextSize::of('.'));
+            if synth_id.is_none() {
+                assert_eq!(range.len(), TextSize::of('.'));
+            }
 
             if let Some(delim) = subtree.delimiter {
                 let expected = match delim.kind {