BigInt should be allowed to use as object key

require('meriyah').parse('{1n:1n}',{next:true})
Uncaught [ParseError [SyntaxError]: [1:4]: Unexpected token: ':'
] {
  index: 4,
  line: 1,
  column: 4,
  description: "[1:4]: Unexpected token: ':'",
  loc: { line: 1, column: 4 }
}

console.log({1n:1})
{ '1': 1 }

[3cp]

yes, I am adding the line to parseLiteral, if you add the line outside of parseLiteral, you need to add it in many places after Token.IsStringOrNumber check.

[KFlash]

It’s a valid case. BigInt can be a property key. Also for Class