Using tag like <<INACCESSIBLE>> is problematic for moose importation

[LeoDefossez]

Actually the tags are <>, <<CLASS_NOT_PREPARED>> or <<MAX_DEPTH_REACHED>, <<Already_Studied>>, meaning a lot of these can appear in the parsed file.

When importing in Moose,
it can be considered as a stringReference in some case, meaning a lot of check has to be done not to make an error.
It also mean comparison in String, that creates a code hard to maintain and understand.

A possibility would be to add to all object that could be replaced by a tag something with an idea like this:
For classReference :

"classReference" : {
   "loaded" : true,
   "fields": ...
}

or

"classReference" : {
   "loaded" : false
}

this would mean an outputted file way larger, but easier to use

[LeoDefossez]

instead of

"classReference" : {
   "loaded" : false
}

just don't log "loaded" : false to condense the file

[LeoDefossez]

1. <<Already_Studied>>, and <> have been deleted by now
2. <<MAX_DEPTH_REACHED> does not cause a lot of problems
3. <<CLASS_NOT_PREPARED>> is still really problematic and should be deleted as said in The tag <<CLASS_NOT_PREPARED>> is problematic for the importation in FamixCallStack #9