message: memory: be more precise when counting sources of non_local blocks
diff: @@ -382,15 +382,19 @@ static void calculateAndInitConstants(Transform &t) {
  for (auto BB : t.src.getBBs()) {
  const auto &instrs = BB->instrs();
  for_each(instrs.begin(), instrs.end(), [&](const auto &i) {
  - num_locals_src += returns_local(i);
  - num_max_nonlocals_inst += returns_nonlocal(i);
  + if (returns_local(i))
  + ++num_locals_src;
  + else if (returns_nonlocal(i))
  + ++num_max_nonlocals_inst;
  });
  }
  for (auto BB : t.tgt.getBBs()) {
  const auto &instrs = BB->instrs();
  for_each(instrs.begin(), instrs.end(), [&](const auto &i) {
  - num_locals_tgt += returns_local(i);
  - num_max_nonlocals_inst += returns_nonlocal(i);
  + if (returns_local(i))
  + ++num_locals_tgt;
  + else if (returns_nonlocal(i))
  + ++num_max_nonlocals_inst;
  });
  }
  num_locals = max(num_locals_src, num_locals_tgt);
  