src/vs/platform/storage/common/storageIpc.ts/BaseProfileAwareStorageDatabaseClient/onDidChangeStorage
class BaseProfileAwareStorageDatabaseClient:	private onDidChangeStorage(e: ISerializableItemsChangeEvent): void {
		if (Array.isArray(e.changed) || Array.isArray(e.deleted)) {
			this._onDidChangeItemsExternal.fire({
				changed: e.changed ? new Map(e.changed) : undefined,
				deleted: e.deleted ? new Set<string>(e.deleted) : undefined
			});
		}
	}