src/vs/workbench/api/node/extHostSearch.ts/NativeExtHostSearch/$provideFileSearchResults
class NativeExtHostSearch:	override $provideFileSearchResults(handle: number, session: number, rawQuery: IRawFileQuery, token: vscode.CancellationToken): Promise<ISearchCompleteStats> {
		const query = reviveQuery(rawQuery);
		if (handle === this._internalFileSearchHandle) {
			return this.doInternalFileSearch(handle, session, query, token);
		}

		return super.$provideFileSearchResults(handle, session, rawQuery, token);
	}