This should merge two UpdateNodes and error if the trees cannot be merged. If the two nodes are UpdateObjectNodes, children with the same field name are merged. Issue ErrorCodes::ConflictingUpdateOperators if we ever try to merge two UpdateLeafNodes or two UpdateNodes of different types.
For now, we assume UpdateArrayNode does not exist.
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SERVER-28621 Parse BSON update expression into an UpdateNode tree
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- Closed
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- is depended on by
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- Closed
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