[Debugger] Modify ES6 Method names instead of removing them

[Beanyy]

Summary

The method names of ES6 classes were being stripped out to prevent name conflicts when there's both a function and method with identical names. However, when connecting the Debugger or Profiler, this causes all class methods to show up with the name anonymous instead of its actual function name.

This change modifies the ES6 method names to prefix and suffix them with '#' instead of removing it, so that the debugger and profiler give more detailed information, while still preventing the name conflicts.

Before:

After:

Test Plan

[tmikov]

Makes sense

[facebook-github-bot]

@tmikov has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

@tmikov merged this pull request in facebook/hermes@acb4596a324960f16a7efba73c3be876fbae6584.