all: ~500 more byte=>u8

vlib/encoding/csv/reader.v

@@ -44,16 +44,16 @@ struct Reader {
 	// headings          []string
 	data string
 pub mut:
-	delimiter         byte
-	comment           byte
+	delimiter         u8
+	comment           u8
 	is_mac_pre_osx_le bool
 	row_pos           int
 }
 
 [params]
 pub struct ReaderConfig {
-	delimiter byte = `,`
-	comment   byte = `#`
+	delimiter u8 = `,`
+	comment   u8 = `#`
 }
 
 // new_reader initializes a Reader with string data to parse and,
@@ -210,6 +210,6 @@ fn (mut r Reader) read_record() ?[]string {
 	return fields
 }
 
-fn valid_delim(b byte) bool {
+fn valid_delim(b u8) bool {
 	return b != 0 && b != `"` && b != `\r` && b != `\n`
 }

vlib/encoding/csv/writer.v

@@ -10,7 +10,7 @@ mut:
 	sb strings.Builder
 pub mut:
 	use_crlf  bool
-	delimiter byte
+	delimiter u8
 }
 
 pub fn new_writer() &Writer {