Support bitwise operators

[cometkim]

As following task of #7057

JS-like bitwise operators need to be implemented as unified operators

• Bitwise NOT (~, lnot) -[ ] support int, bigint
• Bitwise AND (&, land) - support int, bigint
• Bitwise OR (|, lor) - support int, bigint
• Bitwise XOR (^, lxor) - support int, bigint (add bitxor (^) unified operator #7216)

Old names should be kept for compatibility, but introducing longer clear names would be good. e.g. bitwiseAnd, bitwiseOr

This adds new token rules to the syntax, follow-up tasks for editor support will be opened.

[cometkim]

Assigned to @MiryangJung

[cometkim]

Um, I think there are remaining operators to implement.

[fhammerschmidt]

We just have XOR for now, right?

[cometkim]

Right. And @MiryangJung said she can do others too

[fhammerschmidt]

Ok then! I took the liberty of changing your OP.