[js] debug classes names

[ncannasse]

When compiling to JS using the following options:

-D js-classic
-D js-unflatten

The classes output is like this:

hide.comp.cdb.Table = $hxClasses["hide.comp.cdb.Table"] = function(editor,sheet,root,mode) { ... }

And in the VSCode JS debugger, it shows like this:

I think that by separating the single assignment into two separates it should display correctly.

[nadako]

maybe we should (also?) use named functions for this

[kLabz]

This should have been fixed by #10894