[perl #126973] No warnings when Inf or NaN is in sink context ( ∞ )

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# New Ticket Created by  Alex Jakimenko 
# Please include the string:  [perl #126973]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=126973 >


Code:
∞

Result:
(no output)

Same thing with NaN and Inf. I was expecting a warning.

Something like this:

Code:
42

Result:
WARNINGS for -e:
Useless use of constant integer 42 in sink context (line 1)