Bitwise expressions

Syntax

BitwiseAndExpression^β :
EqualityExpression^β
BitwiseAndExpression^β & EqualityExpression^β

BitwiseXorExpression^allowIn :
BitwiseAndExpression^β
BitwiseXorExpression^β ^ BitwiseAndExpression^β

BitwiseOrExpression^allowIn :
BitwiseXorExpression^β
BitwiseOrExpression^β | BitwiseXorExpression^β