recursive directory (by symlink) cause moon to walk directories forever

[tonyfettes]

Bug Report

Environment

OS

Operating System: macOS

MoonBit CLI Tools Version

moon 0.1.20250209 (6a14786 2025-02-09) ~/Library/MoonBit/bin/moon
moonc v0.1.20250209+c5d485290 ~/Library/MoonBit/bin/moonc
moonrun 0.1.20250209 (6a14786 2025-02-09) ~/Library/MoonBit/bin/moonrun

Steps to Reproduce

1. Clone moonbit-community/webgpu.mbt

   git clone [email protected]:moonbit-community/webgpu.mbt.git webgpu.mbt

2. Install NPM dependencies

   corepack pnpm install
   (cd test && corepack pnpm install)

3. Run moon check.

   moon check

   And it just stuck forever.

Expected Behavior

moon check properly stops.

Actual Behavior

It stucks forever.

Checklist

• (Optional) My case is minimal enough to be reproducible.