message: Fix debug build Pair ambiguity on Windows
  Affects native windows builds (and possibly OSX) when the DEBUG
  preprocessor is defined.
diff: @@ -1624,9 +1624,9 @@ extern UniValue getstructuresizes(const UniValue &params, bool fHelp)
  uint32_t nExpeditedBlocks, nExpeditedTxs, nExpeditedUpstream;
  connmgr->ExpeditedNodeCounts(nExpeditedBlocks, nExpeditedTxs, nExpeditedUpstream);
  - ret.push_back(Pair("xpeditedBlk", nExpeditedBlocks));
  - ret.push_back(Pair("xpeditedBlkUp", nExpeditedUpstream));
  - ret.push_back(Pair("xpeditedTxn", nExpeditedTxs));
  + ret.push_back(Pair("xpeditedBlk", (uint64_t)nExpeditedBlocks));
  + ret.push_back(Pair("xpeditedBlkUp", (uint64_t)nExpeditedUpstream));
  + ret.push_back(Pair("xpeditedTxn", (uint64_t)nExpeditedTxs));
  #ifdef DEBUG_LOCKORDER
  ret.push_back(Pair("lockorders", lockorders.size()));
  