float literals

src/parser.rs

@@ -675,6 +675,7 @@ impl Parser {
     fn primary(&mut self) -> Result<Expr, ZernError> {
         if self.match_token(&[
             TokenType::IntLiteral,
+            TokenType::FloatLiteral,
             TokenType::CharLiteral,
             TokenType::StringLiteral,
             TokenType::True,