derive Show and Eq, improvements to LSP

newt-vscode-lsp/syntaxes/newt.tmLanguage.json

@@ -20,7 +20,7 @@
     },
     {
       "name": "keyword.newt",
-      "match": "\\b(λ|=>|<-|->|→|:=|\\$|data|record|constructor|where|do|class|uses|instance|case|of|let|if|then|else|forall|∀|in|U|module|import|ptype|pfunc|infix|infixl|infixr)\\b"
+      "match": "\\b(λ|=>|<-|->|→|:=|\\$|data|record|constructor|where|do|derive|class|uses|instance|case|of|let|if|then|else|forall|∀|in|U|module|import|ptype|pfunc|infix|infixl|infixr)\\b"
     },
     {
       "name": "string.js",