fix +sloe for %hint'ed cores #2764
Merged
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+sloe, which lists the arms of a core type, was broken for core types wrapped in a%hinttag, producing~as though the core had no arms. This fix unwraps the%hintusing+repo:ut, like everything else.I think this bug arose because
%hintwas added later, and there was no type error because it was wildcard-matched with a?+. I hope this is the only such case!