Fix the frontend_server test (#6261)

jason-simmons · web-flow · commit b0b19d6ce1d2 · 2018-09-17T10:07:47.000-07:00
diff --git a/frontend_server/lib/server.dart b/frontend_server/lib/server.dart
@@ -78,7 +78,7 @@ class _FlutterFrontendCompiler implements frontend.CompilerInterface{
 /// version for testing.
 Future<int> starter(
     List<String> args, {
-      _FlutterFrontendCompiler compiler,
+      frontend.CompilerInterface compiler,
       Stream<List<int>> input,
       StringSink output,
     }) async {
