// If an interner exists, return it. Otherwise, prepare a fresh one.
#[inline]
fn with_span_interner<T, F: FnOnce(&mut SpanInterner) -> T>(f: F) -> T {
- crate::with_session_globals(|session_globals| f(&mut *session_globals.span_interner.lock()))
+ crate::with_session_globals(|session_globals| f(&mut session_globals.span_interner.lock()))
}