all: replace []byte with []u8

vlib/crypto/internal/subtle/aliasing.v

@@ -8,7 +8,7 @@ module subtle
 // NOTE: require unsafe in future
 // any_overlap reports whether x and y share memory at any (not necessarily
 // corresponding) index. The memory beyond the slice length is ignored.
-pub fn any_overlap(x []byte, y []byte) bool {
+pub fn any_overlap(x []u8, y []u8) bool {
 	// NOTE: Remember to come back to this (joe-c)
 	return x.len > 0 && y.len > 0 && // &x.data[0] <= &y.data[y.len-1] &&
 	// &y.data[0] <= &x.data[x.len-1]
@@ -21,7 +21,7 @@ pub fn any_overlap(x []byte, y []byte) bool {
 //
 // inexact_overlap can be used to implement the requirements of the crypto/cipher
 // AEAD, Block, BlockMode and Stream interfaces.
-pub fn inexact_overlap(x []byte, y []byte) bool {
+pub fn inexact_overlap(x []u8, y []u8) bool {
 	if x.len == 0 || y.len == 0 || unsafe { &x[0] == &y[0] } {
 		return false
 	}