VSCode syntax highlighting broken in Swift 6.4

after powering through a few hours of broken syntax highlighting i did some digging in VSCode and it looks like Swift 6.4 just stopped emitting highlights for identifiers. on top of that, highlighting for keywords seems to have fallen back to regex patterns, which are obviously unreliable. ideally yes, the Swift Extension for VSCode would use SwiftSyntax to parse syntactical tokens and only apply the semantic layer for the tokens that need it, but that doesn’t seem to be implemented as far a...