Calling a function on a value named 'test' in a type test fails with `TypeError: Cannot read properties of undefined (reading 'start')`

Describe the bug

Calling any function without any arguments on a variable named test (or it, describe, or suite) in a type test causes the test runner to crash with TypeError: Cannot read properties of undefined (reading 'start'). I have traced this issue to: https://github.com/vitest-dev/vitest/blob/b997355be71220c098563b1a60056eb57f4d4d90/packages/vitest/src/typecheck/collect.ts#L147

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-4ad7gp5b?file=test%2Fbug.types.ts

System Info

System:
    OS: macOS 15.3
    CPU: (14) arm64 Apple M4 Pro
    Memory: 69.95 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.12.0 - ~/.nvm/versions/node/v22.12.0/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 10.9.0 - ~/.nvm/versions/node/v22.12.0/bin/npm
    Watchman: 2024.11.18.00 - /run/current-system/sw/bin/watchman
  Browsers:
    Chrome: 120.0.6099.129
    Safari: 18.3
    Safari Technology Preview: 18.2
  npmPackages:
    @vitejs/plugin-react: 4.3.4 => 4.3.4 
    @vitest/ui: 3.0.4 => 3.0.4 
    vitest: 3.0.4 => 3.0.4

Used Package Manager

npm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

Run the linked StackBlitz reproduction to confirm the crash, then inspect packages/vitest/src/typecheck/collect.ts around line 147. Trace how zero-argument calls on variables named test, it, describe, or suite are collected, and verify that the type test completes without the undefined start error.