Implement Semantic Tokens

[AnHeuermann]

Description

Semantic Tokens

The request is sent from the client to the server to resolve semantic tokens for a given file. Semantic tokens are used to add additional color information to a file that depends on language specific symbol information. A semantic token request usually produces a large result. The protocol therefore supports encoding tokens with numbers. In addition optional support for deltas is available.

Desired features

• Provide tokes
  • End identifiers of classes, like in model M end M; the second M needs a sematic token.
  • Class definitions like models, classes, types.
• Server tests
• Client end to end tests
  • Test combination with MetaModelica extension?

Example

This should fix the highlighting issue of the MetaModelica extension like for M and MyLibrary:

Same for self defined types and classes.