Rollup merge of #145568 - fee1-dead-contrib:push-uvsonuzxmkus, r=fmease

ignore frontmatters in `TokenStream::new`

Fixes rust-lang/rust#145520 for now, we'd likely want to figure the stripping part later, so I noted it down on the list on the tracking issue.

cc `@fmease`

2 files changed, 3 insertions, 4 deletions

diff --git a/tests/ui/frontmatter/auxiliary/makro.rs b/tests/ui/frontmatter/auxiliary/makro.rs
index 78e7417afb5..70707b27bff 100644
--- a/tests/ui/frontmatter/auxiliary/makro.rs
+++ b/tests/ui/frontmatter/auxiliary/makro.rs
@@ -3,6 +3,6 @@ use proc_macro::TokenStream;
 
 #[proc_macro]
 pub fn check(_: TokenStream) -> TokenStream {
-    assert!("---\n---".parse::<TokenStream>().unwrap().is_empty());
+    assert_eq!(6, "---\n---".parse::<TokenStream>().unwrap().into_iter().count());
     Default::default()
 }
diff --git a/tests/ui/frontmatter/proc-macro-observer.rs b/tests/ui/frontmatter/proc-macro-observer.rs
index bafbe912032..b1cc1460933 100644
--- a/tests/ui/frontmatter/proc-macro-observer.rs
+++ b/tests/ui/frontmatter/proc-macro-observer.rs
@@ -2,11 +2,10 @@
 //@ proc-macro: makro.rs
 //@ edition: 2021
 
-#![feature(frontmatter)]
-
 makro::check!();
 
-// checks that a proc-macro cannot observe frontmatter tokens.
+// checks that a proc-macro doesn't know or parse frontmatters at all and instead treats
+// it as normal Rust code.
 // see auxiliary/makro.rs for how it is tested.
 
 fn main() {}