extensions/typescript-language-features/src/task/taskProvider.ts/TscTaskProvider/getCommand
class TscTaskProvider:	private static async getCommand(project: TSConfig): Promise<string> {
		if (project.workspaceFolder) {
			const localTsc = await TscTaskProvider.getLocalTscAtPath(path.dirname(project.fsPath));
			if (localTsc) {
				return localTsc;
			}

			const workspaceTsc = await TscTaskProvider.getLocalTscAtPath(project.workspaceFolder.uri.fsPath);
			if (workspaceTsc) {
				return workspaceTsc;
			}
		}

		// Use global tsc version
		return 'tsc';
	}