Using #r in a verbatim string causes infinite loop

[AngleQian]

Describe the bug

Please provide as much information as you can.

A workaround

Please complete the following:

Which version of .NET Interactive are you using?

Version: 1.0.235701+3881a96164de75fca84f5f11027f3606b7878044 Build date: 2021-07-09T14:26:03.4217886Z

• OS
  • [x] Windows 10
  • [ ] macOS
  • [ ] Linux (Please specify distro)
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  • [x] Visual Studio Code
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[jonsequitur]

This is a limitation of the submission parser and isn't limited to #r. It affects all magic commands as well.