Simplify types (microsoft#167374)

Author: alexdima

src/vs/platform/extensionManagement/common/implicitActivationEvents.ts

@@ -7,7 +7,7 @@ import { onUnexpectedError } from 'vs/base/common/errors';
 import { IExtensionManifest } from 'vs/platform/extensions/common/extensions';
 
 export interface IActivationEventsGenerator<T> {
-	(contribution: T, result: { push(item: string): void }): void;
+	(contributions: T[], result: { push(item: string): void }): void;
 }
 
 export class ImplicitActivationEventsImpl {

src/vs/workbench/services/extensions/common/extensionsRegistry.ts

@@ -565,7 +565,7 @@ export const schema: IJSONSchema = {
 	}
 };
 
-export type toArray<T> = T extends Array<any> ? T : T[];
+export type removeArray<T> = T extends Array<infer X> ? X : T;
 
 export interface IExtensionPointDescriptor<T> {
 	extensionPoint: string;
@@ -576,7 +576,7 @@ export interface IExtensionPointDescriptor<T> {
 	 * A function which runs before the extension point has been validated and which
 	 * can should collect automatic activation events from the contribution.
 	 */
-	activationEventsGenerator?: IActivationEventsGenerator<toArray<T>>;
+	activationEventsGenerator?: IActivationEventsGenerator<removeArray<T>>;
 }
 
 export class ExtensionsRegistryImpl {