hey!

exporting an enum with rune storage causes harec to fail and emit the
following error:
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harec: src/typedef.c:52: storage_to_suffix: Assertion `0' failed.
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to my understanding, enums with rune storage are spec-compliant. I've
verified this on version 0.24.0, and using custom compiled hare at
commit a3fd5ec and harec at 3662f0c. the following program reproduces
it:

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export type polarity = enum rune{ POS = '+' };

export fn main() void = {
    const joe = polarity::POS;
};
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thanks!