fs: can't require non-ASCII file paths in Shift-JIS filesystem

Version

v22.13.0, v23.6.0

Platform

Microsoft Windows NT 10.0.26100.0 x64

Subsystem

fs

What steps will reproduce the bug?

1. Use Japanese Windows with Shift-JIS (aka CP932)
2. Load a non-ASCII file path with require such as ヘルプ.js

How often does it reproduce? Is there a required condition?

Always reproduceable under a Shift-JIS filesystem.

What is the expected behavior? Why is that the expected behavior?

The file is loaded correctly.

What do you see instead?

"Process exited with code 3221225477"

Additional information

• May be similar to https://github.com/nodejs/node/issues/56049, although it's an issue for a different method and doesn't mention the Shift-JIS requirement.
• The issue was found in https://github.com/sapphiredev/pieces/issues/460 for reference, which used require in the user's case, the aforementioned issue also links a reproducible example repository, although not a minimal one for testing purposes, the issue has been reproduced with a simple require in REPL as well.
• The same code works fine:
  • If the filesystem isn't Shift-JIS (UNIX, non-Japanese Windows).
  • ASCII names are used instead.
  • When run with an alternative runtime such as Deno.

Start in the fs subsystem by reproducing the simple require case described on Japanese Windows with a Shift-JIS filesystem, then compare it with ASCII paths and non-Shift-JIS systems. The linked reproducible repository and the REPL case provide starting examples. Done means require loads a non-ASCII path successfully under Shift-JIS without the reported process exit.