address some review comments

diff --git a/dwds/lib/src/dwds_vm_client.dart b/dwds/lib/src/dwds_vm_client.dart
index 716ce0f..33f4731 100644
--- a/dwds/lib/src/dwds_vm_client.dart
+++ b/dwds/lib/src/dwds_vm_client.dart

@@ -484,7 +484,7 @@
                 }
               });
             });
-        logger.info('Issuing \$dartHotRestartBeginDwds request');
+        logger.info('Issuing \$dartHotRestartBeginDwds request.');
         final remoteObject = await chromeProxyService.inspector.jsEvaluate(
           '\$dartHotRestartBeginDwds(\'$runId\', $pauseIsolatesOnStart);',
           awaitPromise: true,

diff --git a/dwds/test/frontend_server_common/bootstrap.dart b/dwds/test/frontend_server_common/bootstrap.dart
index 143cbd4..c49a236 100644
--- a/dwds/test/frontend_server_common/bootstrap.dart
+++ b/dwds/test/frontend_server_common/bootstrap.dart

@@ -496,7 +496,6 @@
     if (!window.\$dartReloadModifiedModules) {
       window.\$dartReloadModifiedModules = (function(filesToReload, appName) {
         return new Promise(function(resolve) {
-          let requestedScripts = [];
           function callback() {
             resolve(filesToReload);
           }

diff --git a/dwds/web/reloader/ddc_library_bundle_restarter.dart b/dwds/web/reloader/ddc_library_bundle_restarter.dart
index 0e431d8..630890b 100644
--- a/dwds/web/reloader/ddc_library_bundle_restarter.dart
+++ b/dwds/web/reloader/ddc_library_bundle_restarter.dart

@@ -21,7 +21,7 @@
   external JSPromise<JSArray<JSObject>> hotRestartBegin([
     JSArray<JSObject>? reloadedSources,
   ]);
-  external JSAny? hotRestartEnd();
+  external void hotRestartEnd();
 
   external JSPromise<JSAny?> hotReload(
     JSArray<JSString> filesToLoad,

diff --git a/dwds/web/reloader/restarter.dart b/dwds/web/reloader/restarter.dart
index 01a93f4..1810cca 100644
--- a/dwds/web/reloader/restarter.dart
+++ b/dwds/web/reloader/restarter.dart

@@ -5,6 +5,13 @@
 import 'dart:js_interop';
 
 /// A Restarter that supports a hot restart over two phases.
+///
+/// The APIs here should be used in place of [Restarter.restart].
+///
+/// This is a temporary interface that is only useful while there are
+/// `Restarter`s that don't use the two phase restart.
+// TODO(nshahan): Move these members into `Restarter` when all have been
+// migrated to the two phase restart.
 abstract class TwoPhaseRestarter implements Restarter {
   /// Starts a hot restart operation.
   ///