---input---
// Test literals that should be tokenized as hexadecimal literals.
0x01
0Xefn
0x0EF

---tokens---
''            Text
'// Test literals that should be tokenized as hexadecimal literals.' Comment.Single
'\n'          Text.Whitespace

'0x01'        Literal.Number.Hex
'\n'          Text.Whitespace

'0Xefn'       Literal.Number.Hex
'\n'          Text.Whitespace

'0x0EF'       Literal.Number.Hex
'\n'          Text.Whitespace