Optimizing: Tag arena allocations in HGraph.

Replace GrowableArray with ArenaVector in HGraph and related
classes HEnvironment, HLoopInformation, HInvoke and HPhi,
and tag allocations with new arena allocation types.

Change-Id: I3d79897af405b9a1a5b98bfc372e70fe0b3bc40d
diff --git a/compiler/optimizing/side_effects_analysis.cc b/compiler/optimizing/side_effects_analysis.cc
index 1c3e255..1956781 100644
--- a/compiler/optimizing/side_effects_analysis.cc
+++ b/compiler/optimizing/side_effects_analysis.cc
@@ -21,8 +21,8 @@
 void SideEffectsAnalysis::Run() {
   // Inlining might have created more blocks, so we need to increase the size
   // if needed.
-  block_effects_.SetSize(graph_->GetBlocks().Size());
-  loop_effects_.SetSize(graph_->GetBlocks().Size());
+  block_effects_.SetSize(graph_->GetBlocks().size());
+  loop_effects_.SetSize(graph_->GetBlocks().size());
 
   // In DEBUG mode, ensure side effects are properly initialized to empty.
   if (kIsDebugBuild) {