roc compiler hangs indefinitely when encountering unexpected lower case import

[imclerran]

I was converting a roc app to an interface, and still had a leftover import of pf.Stdout in my import statements. When running roc test MyInterfaceFile.roc, the terminal hangs indefinitely, with no output, until Ctrl+C is pressed to break execution.

I have tried this in a few different interface files, and adding any lowerCamel.* import will hang the execution. If I import a non existant UpperCamel.*, the compiler correctly fails with a file not found error. But any import beginning with a lowercase letter causes the compiler to hang.

Both roc check and roc test hang this way.

EDIT: On further testing, adding an unexpected lower case import to a roc app will also cause the same indefinite hang - so this bug does not only apply to interfaces, but also to apps, and thus roc run, roc dev, etc will also encounter this issue.

[RMailaender]

I think it might be related to: #6373

[imclerran]

Yes, and like the same issue as #5961 - good find on your report.