Pass multi-elt array key for to_h using yieldArray #8968
Merged
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When incoming argument list contains arguments of the form ([1, 2], 3), ensure the first element is passed as an array to the to_h block, rather than yielded as a splattable argument list.
Fixes part of #8435
See ruby/spec#1283 for some discussion about how to write a spec for this behavior.