fix(core): don’t stop change detection because of errors

- prevents unsubscribing from the zone on error
- prevents unsubscribing from directive `EventEmitter`s on error
- prevents detaching views in dev mode if there on error
- ensures that `ngOnInit` is only called 1x (also in prod mode)

Fixes #9531
Fixes #2413
Fixes #15925

packages/core/src/view/element.ts

@@ -189,7 +189,14 @@ export function listenToElementOutputs(view: ViewData, compView: ViewData, def:
 }
 
 function renderEventHandlerClosure(view: ViewData, index: number, eventName: string) {
-  return (event: any) => dispatchEvent(view, index, eventName, event);
+  return (event: any) => {
+    try {
+      return dispatchEvent(view, index, eventName, event);
+    } catch (e) {
+      // Attention: Don't rethrow, to keep in sync with directive events.
+      view.root.errorHandler.handleError(e);
+    }
+  }
 }