Fine-grained grouping of pseudos

[kripod]

Currently, pseudo-classes and pseudo-elements are all merged into SimplePseudos and AdvancedPseudos, including their vendor-prefixed variants. I think there should be more groups, like:

• Pseudos
  • SimplePseudos
    • StandardSimplePseudos
      • StandardSimplePseudoClasses (e.g. :any-link)
      • StandardSimplePseudoElements (e.g. ::after)
    • VendorSimplePseudos
      • VendorSimplePseudoClasses (e.g. :-moz-any-link)
      • VendorSimplePseudoElements (e.g. ::-moz-selection)
    • ObsoleteSimplePseudos
      • ObsoleteSimplePseudoClasses (e.g. :after or :before with a single :)
      • ObsoleteSimplePseudoElements
  • AdvancedPseudos
    • (Similar to above)