Yeah, but what is the intention of all other code that uses:
my $var if COND;
? Either the if COND is redundant, because it's always true, or it maybe false and you have the same issue. Also,
my $var = 0 if 0;
creates a "state" variable, yet there's no warning.
Now, I'm usually not a fan of adding a warning for every little thing, but if there's a warning, it shouldn't be inconsistent on when it warns and when it doesn't.
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