message: Fix type of parameter to add_row_with_key.
diff: @@ -227,7 +227,7 @@ struct MarkDirtyMixin {
  bool set_int_unique(size_t, size_t, size_t, int_fast64_t) { return true; }
  bool set_string_unique(size_t, size_t, size_t, StringData) { return true; }
  - bool add_row_with_key(size_t, size_t, size_t, size_t) { return true; }
  + bool add_row_with_key(size_t, size_t, size_t, int64_t) { return true; }
  };
  class TransactLogValidationMixin {
  @@ -499,7 +499,7 @@ public:
  return true;
  }
  - bool add_row_with_key(size_t row_ndx, size_t prior_num_rows, size_t key_col, size_t)
  + bool add_row_with_key(size_t row_ndx, size_t prior_num_rows, size_t key_col, int64_t)
  {
  insert_empty_rows(row_ndx, 1, prior_num_rows, false);
  m_active_table->modify(row_ndx, key_col);
  