[crankshaft] Remove adventurous operator< for Handle<Map>.

src/lithium.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/lithium.h"
 
 #include "src/v8.h"
 
 #include "src/scopes.h"
 
@@ skipping 255 matching lines @@
 }
 
 
 LChunk::LChunk(CompilationInfo* info, HGraph* graph)
     : spill_slot_count_(0),
       info_(info),
       graph_(graph),
       instructions_(32, info->zone()),
       pointer_maps_(8, info->zone()),
       inlined_functions_(1, info->zone()),
-      deprecation_dependencies_(MapLess(), MapAllocator(info->zone())),
-      stability_dependencies_(MapLess(), MapAllocator(info->zone())) {}
+      deprecation_dependencies_(32, info->zone()),
+      stability_dependencies_(8, info->zone()) {}
 
 
 LLabel* LChunk::GetLabel(int block_id) const {
   HBasicBlock* block = graph_->blocks()->at(block_id);
   int first_instruction = block->first_instruction_index();
   return LLabel::cast(instructions_[first_instruction]);
 }
 
 
 int LChunk::LookupDestination(int block_id) const {
@@ skipping 169 matching lines @@
     AddWeakObjectToCodeDependency(isolate(), objects.at(i), code);
   }
   code->set_can_have_weak_objects(true);
 }
 
 
 void LChunk::CommitDependencies(Handle<Code> code) const {
   if (!code->is_optimized_code()) return;
   HandleScope scope(isolate());
 
-  for (MapSet::const_iterator it = deprecation_dependencies_.begin(),
-       iend = deprecation_dependencies_.end(); it != iend; ++it) {
-    Handle<Map> map = *it;
+  for (Handle<Map> map : deprecation_dependencies_) {
     DCHECK(!map->is_deprecated());
     DCHECK(map->CanBeDeprecated());
     Map::AddDependentCode(map, DependentCode::kTransitionGroup, code);
   }
 
-  for (MapSet::const_iterator it = stability_dependencies_.begin(),
-       iend = stability_dependencies_.end(); it != iend; ++it) {
-    Handle<Map> map = *it;
+  for (Handle<Map> map : stability_dependencies_) {
     DCHECK(map->is_stable());
     DCHECK(map->CanTransition());
     Map::AddDependentCode(map, DependentCode::kPrototypeCheckGroup, code);
   }
 
   info_->dependencies()->Commit(code);
   RegisterWeakObjectsInOptimizedCode(code);
 }
 
 
@@ skipping 229 matching lines @@
 
 LPhase::~LPhase() {
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceLithium(name(), chunk_);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8