Get tracing back into the latex environemtn end parser.

src/parser/latex_environment.rs

@@ -60,16 +60,25 @@ fn latex_environment_end(
 ) -> impl for<'r, 's> Fn(Context<'r, 's>, &'s str) -> Res<&'s str, &'s str> {
     let current_name_lower = current_name.to_lowercase();
     move |context: Context, input: &str| {
+        _latex_environment_end(context, input, current_name_lower.as_str())
+    }
+}
+
+#[tracing::instrument(ret, level = "debug")]
+fn _latex_environment_end<'r, 's, 'x>(
+    context: Context<'r, 's>,
+    input: &'s str,
+    current_name_lower: &'x str,
+) -> Res<&'s str, &'s str> {
     start_of_line(context, input)?;
     let (remaining, _leading_whitespace) = space0(input)?;
     let (remaining, (_begin, _name, _close_brace, _ws, _line_ending)) = tuple((
         tag_no_case(r#"\end{"#),
-            tag_no_case(current_name_lower.as_str()),
+        tag_no_case(current_name_lower),
         tag("}"),
         space0,
         alt((eof, line_ending)),
     ))(remaining)?;
     let source = get_consumed(input, remaining);
     Ok((remaining, source))
-    }
 }