[V8] Run clang-tidy performance-for-range-copy check on src/

BUG=None

Review-Url: https://codereview.chromium.org/2609173005
Cr-Commit-Position: refs/heads/master@{#42094}

src/compilation-statistics.cc

@@ -134,10 +134,10 @@ std::ostream& operator<<(std::ostream& os, const AsPrintableStatistics& ps) {
   }
 
   if (!ps.machine_output) WriteHeader(os);
-  for (auto phase_kind_it : sorted_phase_kinds) {
+  for (const auto& phase_kind_it : sorted_phase_kinds) {
     const auto& phase_kind_name = phase_kind_it->first;
     if (!ps.machine_output) {
-      for (auto phase_it : sorted_phases) {
+      for (const auto& phase_it : sorted_phases) {
         const auto& phase_stats = phase_it->second;
         if (phase_stats.phase_kind_name_ != phase_kind_name) continue;
         const auto& phase_name = phase_it->first;

src/compiler/js-create-lowering.cc

@@ -1253,7 +1253,7 @@ Node* JSCreateLowering::AllocateFastLiteral(
         AccessBuilder::ForJSArrayLength(boilerplate_array->GetElementsKind()),
         handle(boilerplate_array->length(), isolate()));
   }
-  for (auto const inobject_field : inobject_fields) {
+  for (auto const& inobject_field : inobject_fields) {
     builder.Store(inobject_field.first, inobject_field.second);
   }
   return builder.Finish();

src/compiler/js-native-context-specialization.cc

@@ -247,7 +247,7 @@ Reduction JSNativeContextSpecialization::ReduceNamedAccess(
 
   // TODO(turbofan): Add support for inlining into try blocks.
   bool is_exceptional = NodeProperties::IsExceptionalCall(node);
-  for (auto access_info : access_infos) {
+  for (const auto& access_info : access_infos) {
     if (access_info.IsAccessorConstant()) {
       // Accessor in try-blocks are not supported yet.
       if (is_exceptional || !(flags() & kAccessorInliningEnabled)) {

src/libplatform/tracing/trace-config.cc

@@ -25,7 +25,7 @@ bool TraceConfig::IsCategoryGroupEnabled(const char* category_group) const {
   while (category_stream.good()) {
     std::string category;
     getline(category_stream, category, ',');
-    for (auto included_category : included_categories_) {
+    for (const auto& included_category : included_categories_) {
       if (category == included_category) return true;
     }
   }