[wasm] [debugger] Eval fixes for static class eval

[ilonatommy]

Covering skipped evaluation cases from #61252. To be merged after #61252.

It fixes static classes evaluation and nested static classes evaluation. It changed nested classes access concatenation character: from "/" to ".".
Requires a follow-up Issue to fix the test: EvaluateStaticClassFromStaticMethod with parameters without the full namespace.

[radical]

This is looking great. It does cause some test failures though, which need to be fixed.

And there are some additional cases that we should look at, but not needed in this PR.

[ilonatommy]

@radical, as discussed I merged nested static evaluation PR with this one. Only 2 more tests fail on this PR in comparison to main and they are connected with lack of method evaluation without namespace (EvaluateStaticClassFromStaticMethod cannot be found in the same namespace it is declared). It will have to be solved in a separate PR.

[radical]

Thank you for your patience, LGTM! 👍

[ilonatommy]

Fixes #61462.