Allow to call init and debug inner field in a test module

[texasspurstar]

Steps to Reproduce Issue
The following repo shows the restrictions about the testcase in a different file.
https://github.com/yanganto/SuiMoveTestIssue

The demo1 and demo2 are the same, and the testcases are the same, the only different is one is in the module and the other is in the test module.

Call sui move test under /demo1
Call sui move test under /demo2
Expected Result
Expected the demo2 should pass.
Specify what outcome you expected should have resulted, but didn't.

Actual Result
The test of demo2 fails, due to the visibility issue.

System Information
OS: NixOS
Compiler: Rust 1.81

[github-actions]

Thank you for opening this issue, a team member will review it shortly. Until then, please do not interact with any users that claim to be from Sui support and do not click on any links!

[stefan-mysten]

See #20481