Treat ; as a terminator rather than something that can be glued together in an expression

crates/tt/src/iter.rs

@@ -132,6 +132,7 @@ impl<'a, S: Copy> TtIter<'a, S> {
             }
             ('-' | '!' | '*' | '/' | '&' | '%' | '^' | '+' | '<' | '=' | '>' | '|', '=', _)
             | ('-' | '=' | '>', '>', _)
+            | (_, _, Some(';'))
             | ('<', '-', _)
             | (':', ':', _)
             | ('.', '.', _)