Get workspace compiling with new event emitters

crates/call2/src/call2.rs

@@ -17,6 +17,7 @@ use gpui::{
 };
 use postage::watch;
 use project::Project;
+use room::Event;
 use settings::Settings;
 use std::sync::Arc;
 
@@ -85,9 +86,7 @@ pub struct ActiveCall {
     _subscriptions: Vec<client::Subscription>,
 }
 
-impl EventEmitter for ActiveCall {
-    type Event = room::Event;
-}
+impl EventEmitter<Event> for ActiveCall {}
 
 impl ActiveCall {
     fn new(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut ModelContext<Self>) -> Self {

crates/call2/src/room.rs

@@ -79,9 +79,7 @@ pub struct Room {
     maintain_connection: Option<Task<Option<()>>>,
 }
 
-impl EventEmitter for Room {
-    type Event = Event;
-}
+impl EventEmitter<Event> for Room {}
 
 impl Room {
     pub fn channel_id(&self) -> Option<u64> {