Allow calling each, each_hash without block#656

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kch wants to merge 6 commits intosparklemotion:mainfrom

kch:each_hash_enum

Commits on Feb 26, 2026

support calling each_hash without block. returns enumerator

kch
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flavorjones
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support calling #each without block. returns enumerator

kch
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flavorjones
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each, each_hash return self when called with block. allows chaining;

kch
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flavorjones
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fix test that wasn't doing anything

kch
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flavorjones
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also test each_hash.next raises when closed

kch
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flavorjones
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test each/each_hash return Enumerator w/o block, return self w/ block

kch
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flavorjones
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