all: replace []byte with []u8

vlib/x/json2/scanner.v

@@ -7,7 +7,7 @@ import strconv
 
 struct Scanner {
 mut:
-	text []byte
+	text []u8
 	pos  int
 	line int
 	col  int
@@ -31,7 +31,7 @@ enum TokenKind {
 }
 
 pub struct Token {
-	lit  []byte
+	lit  []u8
 	kind TokenKind
 	line int
 	col  int
@@ -108,7 +108,7 @@ fn (s Scanner) error(description string) Token {
 }
 
 // tokenize returns a token based on the given lit and kind.
-fn (s Scanner) tokenize(lit []byte, kind TokenKind) Token {
+fn (s Scanner) tokenize(lit []u8, kind TokenKind) Token {
 	return Token{
 		lit: lit
 		kind: kind
@@ -121,7 +121,7 @@ fn (s Scanner) tokenize(lit []byte, kind TokenKind) Token {
 [manualfree]
 fn (mut s Scanner) text_scan() Token {
 	mut has_closed := false
-	mut chrs := []byte{}
+	mut chrs := []u8{}
 	for {
 		s.pos++
 		s.col++
@@ -148,7 +148,7 @@ fn (mut s Scanner) text_scan() Token {
 				if s.pos + 5 < s.text.len {
 					s.pos++
 					s.col++
-					mut codepoint := []byte{}
+					mut codepoint := []u8{}
 					codepoint_start := s.pos
 					for s.pos < s.text.len && s.pos < codepoint_start + 4 {
 						s.pos++
@@ -201,7 +201,7 @@ fn (mut s Scanner) num_scan() Token {
 	// -[digit][?[dot][digit]][?[E/e][?-/+][digit]]
 	mut is_fl := false
 	mut dot_index := -1
-	mut digits := []byte{}
+	mut digits := []u8{}
 	if s.text[s.pos] == `-` {
 		digits << `-`
 		if !s.text[s.pos + 1].is_digit() {
@@ -262,7 +262,7 @@ fn (mut s Scanner) scan() Token {
 		s.move()
 	}
 	if s.pos >= s.text.len {
-		return s.tokenize([]byte{}, .eof)
+		return s.tokenize([]u8{}, .eof)
 	} else if s.pos + 3 < s.text.len && (s.text[s.pos] == `t` || s.text[s.pos] == `n`) {
 		ident := s.text[s.pos..s.pos + 4].bytestr()
 		if ident == 'true' || ident == 'null' {
@@ -298,7 +298,7 @@ fn (mut s Scanner) scan() Token {
 		return s.invalid_token()
 	} else if s.text[s.pos] in json2.char_list {
 		chr := s.text[s.pos]
-		tok := s.tokenize([]byte{}, TokenKind(int(chr)))
+		tok := s.tokenize([]u8{}, TokenKind(int(chr)))
 		s.move()
 		return tok
 	} else if s.text[s.pos] == `"` {

vlib/x/ttf/common.v

@@ -114,8 +114,8 @@ pub fn (mut bmp BitMap) save_as_ppm(file_name string) {
 	bmp.buf = tmp_buf
 }
 
-pub fn (mut bmp BitMap) get_raw_bytes() []byte {
-	mut f_buf := []byte{len: bmp.buf_size / 4}
+pub fn (mut bmp BitMap) get_raw_bytes() []u8 {
+	mut f_buf := []u8{len: bmp.buf_size / 4}
 	mut i := 0
 	for i < bmp.buf_size {
 		unsafe {

vlib/x/ttf/ttf.v

@@ -45,7 +45,7 @@ mut:
 ******************************************************************************/
 pub struct TTF_File {
 pub mut:
-	buf                     []byte
+	buf                     []u8
 	pos                     u32
 	length                  u16
 	scalar_type             u32
@@ -319,7 +319,7 @@ fn (mut tf TTF_File) read_simple_glyph(mut in_glyph Glyph) {
 	num_points++
 
 	mut i := 0
-	mut flags := []byte{}
+	mut flags := []u8{}
 	for i < num_points {
 		flag := tf.get_u8()
 		flags << flag

vlib/x/ttf/ttf_test.v

@@ -151,7 +151,7 @@ ffbf ffff bf00 0000 0000 0000 0000 0000
 0000 0000 0000 0000 0000 0000 0000 0000
 '
 
-fn save_raw_data_as_array(buf_bin []byte, file_name string) {
+fn save_raw_data_as_array(buf_bin []u8, file_name string) {
 	mut buf := strings.new_builder(buf_bin.len * 5)
 	for x in buf_bin {
 		buf.write_string('0x${x:02x},')
@@ -212,8 +212,8 @@ fn test_main() {
 	}
 }
 
-fn get_raw_data(data string) []byte {
-	mut buf := []byte{}
+fn get_raw_data(data string) []u8 {
+	mut buf := []u8{}
 	mut c := 0
 	mut b := u32(0)
 	for ch in data {