This PR adjusts the two issues I encountered while developing a tool that converts RPCHelpMan objects into bindings for other language(s).
The first is in createrawtransaction, where the address part, e.g. bc1qabc in
createrawtransaction '[]' '[{"bc1qabc": 1.0}]'
is declared as a Type::OBJ, when in reality it should be a Type::OBJ_USER_KEYS, defined as such:
bitcoin/src/rpc/util.h
Line 126 in 5925f1e
OBJ_USER_KEYS, //!< Special type where the user must set the keys e.g. to define multiple addresses; as opposed to e.g. an options object where the keys are predefined
(coincidentally, this is the first and only (afaict) usage of this RPCArg::Type).
The second is in the listaddressgroupings RPC, which returns an array of arrays of arrays, where the innermost one is a tuple-thingie with an optional 3rd item; this is an ARR_FIXED, not an ARR.Backport of core#21897.