Fix compilation with rust-lang/rust#87990

Author: Mark-Simulacrum

rls-rustc/src/lib.rs

@@ -121,7 +121,7 @@ impl Callbacks for ShimCalls {
         let sess = compiler.session();
         let input = compiler.input();
 
-        let cwd = &sess.working_dir.local_path_if_available();
+        let cwd = &sess.opts.working_dir.local_path_if_available();
 
         let src_path = match input {
             Input::File(ref name) => Some(name.to_path_buf()),
@@ -209,7 +209,7 @@ impl Callbacks for ShimCalls {
 
 #[cfg(feature = "ipc")]
 fn fetch_input_files(sess: &rustc_session::Session) -> Vec<PathBuf> {
-    let cwd = &sess.working_dir.local_path_if_available();
+    let cwd = &sess.opts.working_dir.local_path_if_available();
 
     sess.source_map()
         .files()