fix compile errors on release build of g++

common/logger_ref.hh

@@ -4,9 +4,10 @@
 #include <exception>
 #include <memory>
 #include <mutex>
-#include <source_location>
 #include <string_view>
 
+#include <source_location.hh>
+
 #include "nf7.hh"
 
 #include "common/file_base.hh"

file/node_network.cc

@@ -948,9 +948,11 @@ void Network::Item::Attach(Network& owner) noexcept {
 
   auto [item_itr, item_inserted] = owner_->item_map_.emplace(id_, this);
   assert(item_inserted);
+  (void) item_inserted;
 
   auto [node_itr, node_inserted] = owner_->node_map_.emplace(node_, this);
   assert(node_inserted);
+  (void) node_inserted;
 
   file_->MoveUnder(owner, std::to_string(id_));
   watcher_.emplace(*this);

nf7.cc

@@ -182,6 +182,7 @@ File::TypeInfo::TypeInfo(const std::string& name,
   auto& reg = registry_();
   auto [itr, uniq] = reg.emplace(std::string(name_), this);
   assert(uniq);
+  (void) uniq;
 }
 File::TypeInfo::~TypeInfo() noexcept {
   auto& reg = registry_();