Syntax highlighting flaws

[tomx-sh]

Hi, Solidity syntax highlighting seems a bit flawed on VSCode. Using cmd+shift+P>Developer: Inspect Editor Tokens and Scopes, you can verify that:

• some ) characters are not recognized as punctuation.parameters.end (some are)
• some , characters are not recognized as punctuation.separator (some are)
• in >=, the = character is not recognized as part of the keyword.operator.logic. (It is recognized as keyword.operator.assignment instead).

The following image illustrates this using my custom theme:

If you give me some quick directives, I may be able to help fixing this (my experience with ANTLR V4 lexer and parser systems might come useful). I'd be happy to!