[perl #111964] [BUG] LTA error message when passing an Int argument to base conversion in Rakudo

[Christian Bartolomaeus via RT]

The error message now hopefully is adequat:

> my $x=31; say :8($x)
You have confused the number 31 with the textual representation "31";
if you wanted to render the number in the given base, use $number.base($radix)
  in block <unit> at <unknown file>:1

There is a test for the correct exception type (X::Numeric::Confused) in 
S02-literals/radix.t