---input---
i32.extend8_s
i32.extend16_s
i64.extend8_s
i64.extend16_s
i64.extend32_s

---tokens---
'i32.extend8_s' Name.Builtin
'\n'          Text

'i32.extend16_s' Name.Builtin
'\n'          Text

'i64.extend8_s' Name.Builtin
'\n'          Text

'i64.extend16_s' Name.Builtin
'\n'          Text

'i64.extend32_s' Name.Builtin
'\n'          Text
