Removes ==

src/vs/workbench/api/browser/mainThreadTimeline.ts

@@ -35,8 +35,7 @@ export class MainThreadTimeline implements MainThreadTimelineShape {
 
 		const emitters = this._providerEmitters;
 		let onDidChange = emitters.get(provider.source);
-		// eslint-disable-next-line eqeqeq
-		if (onDidChange == null) {
+		if (onDidChange === undefined) {
 			onDidChange = new Emitter<URI | undefined>();
 			emitters.set(provider.source, onDidChange);
 		}

src/vs/workbench/api/common/extHostTimeline.ts

@@ -54,6 +54,7 @@ export class ExtHostTimeline implements IExtHostTimeline {
 				timelineDisposables.clear();
 
 				const results = await provider.provideTimeline(uri, token);
+				// Intentional == we don't know how a provider will respond
 				// eslint-disable-next-line eqeqeq
 				return results != null
 					? results.map(item => convertTimelineItem(item))