Compilation error due to an unallowed radix in a number literal
class X::Syntax::Number::RadixOutOfRange does X::Syntax { }
Syntax error that is thrown when the radix of a radix number is not allowed, like :1<1> or :42<ouch> .
:1<1>
:42<ouch>
method radix(--> Int:D)
The offensive radix.