src/vs/workbench/api/common/extHostWorkspace.ts/ExtHostWorkspace/getWorkspaceFolder2
class ExtHostWorkspace:	async getWorkspaceFolder2(uri: vscode.Uri, resolveParent?: boolean): Promise<vscode.WorkspaceFolder | undefined> {
		await this._barrier.wait();
		if (!this._actualWorkspace) {
			return undefined;
		}
		return this._actualWorkspace.getWorkspaceFolder(uri, resolveParent);
	}