Add punctuation highlighting for highlighting punctuation in doctests, fix highlighting in doctests

crates/rust-analyzer/src/to_proto.rs

@@ -323,6 +323,7 @@ fn semantic_token_type_and_modifiers(
         HighlightTag::UnresolvedReference => semantic_tokens::UNRESOLVED_REFERENCE,
         HighlightTag::FormatSpecifier => semantic_tokens::FORMAT_SPECIFIER,
         HighlightTag::Operator => lsp_types::SemanticTokenType::OPERATOR,
+        HighlightTag::Punctuation => semantic_tokens::PUNCTUATION,
         HighlightTag::EscapeSequence => semantic_tokens::ESCAPE_SEQUENCE,
     };