internal: tweak test_on_main

[Young-Flash]

No description provided.

[peter-jerry-ye-code-review]

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Here are the observations from the provided git diff:

1. Incorrect File Path for tcc:

   • The original line chmod +x ~/.moon/bin/tcc was changed to chmod +x ~/.moon/bin/internal/tcc. This suggests that the tcc binary is located in the internal subdirectory rather than directly in the bin directory. If the internal directory does not exist or the tcc binary is not there, this command will fail. Ensure the path is correct and the file exists in the specified location.

2. Potential Missing Directory Creation:

   • The ~/.moon/bin/internal directory is referenced, but there is no explicit step to create this directory if it does not already exist. If the directory is missing, the chmod command will fail. Consider adding a step like mkdir -p ~/.moon/bin/internal before the chmod command to ensure the directory exists.

3. Hardcoded Paths:

   • The paths ~/.moon/bin and ~/.moon/lib/core are hardcoded. While this may work in the current setup, it could cause issues if the environment changes or if the script is used in a different context. Consider using environment variables or making the paths configurable to improve flexibility and maintainability.

These are the key issues to address based on the provided diff.