src/vs/workbench/api/browser/mainThreadSearch.ts/RemoteSearchProvider/constructor
class RemoteSearchProvider:	constructor(
		searchService: ISearchService,
		type: SearchProviderType,
		private readonly _scheme: string,
		private readonly _handle: number,
		private readonly _proxy: ExtHostSearchShape
	) {
		this._registrations.add(searchService.registerSearchResultProvider(this._scheme, type, this));
	}