From @bbkr

<bbkr_> rakudo​: print now.WHAT
<p6eval> rakudo 7fd707​: OUTPUT«use of uninitialized variable $v of type Instant in string context in block at /tmp/vPks5sMJeI​:1â�¤â�¤Â»

From @moritz

There's nothing broken about this. .WHAT returns a type object, which
warns when used as a string.

Note that if you use say() instead of print(), say() uses .gist instead
of .Str to turn the type object into a string, which is why you don't
get a warning.

If you want to print the name of a type, either use

print now.^name

or

print now.HOW.gist

(that latter includes the pair of empty parens)

Cheers,
Moritz

@moritz - Status changed from 'new' to 'rejected'