Uncaught promise rejections sometimes crash watch mode

[sdnts]

Describe the bug

If an awaited promise gets rejected with anything other than an object, the test runner exits watch mode with the following error:

TypeError: can't access property "stacks", e is undefined

(error message varies slightly depending on what the promise rejection returns)

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-vvm3wa?file=test%2Fbasic.test.ts&initialPath=__vitest__
I've included three lines in the test in here. Only the third line behaves as expected.

Please let me know if I'm being unclear!

System Info

System:
    OS: macOS 12.6
    CPU: (10) arm64 Apple M1 Pro
    Memory: 577.14 MB / 32.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 18.10.0 - ~/.n/bin/node
    Yarn: 1.22.15 - ~/.local/bin/yarn
    npm: 8.19.2 - ~/.n/bin/npm
  Browsers:
    Firefox Developer Edition: 105.0
    Safari: 16.0
  npmPackages:
    vitest: 0.23.4 => 0.23.4

Used Package Manager

npm

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