Jack Bates

> I'm not convinced that the change proposed here reduces the probability of intermittent failures. I think I've fixed it: The loop below now runs for 50 minutes without failing...

I've rebased this change and confirmed that an indefinite loop still exhausts the job time limit without failing: https://travis-ci.org/github/jablko/fzf/builds/670732268

@andrewbranch Thanks! - Don't we already differentiate on ambient to raise an analogous error? ```sh error TS2748: Cannot access ambient const enums when the '--isolatedModules' flag is provided. ``` https://github.com/microsoft/TypeScript/blob/e4fe50cca477a3e46f9b629a6c5be0b0ed8b010f/src/compiler/checker.ts#L34251...