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/ssa_builder.h b/compiler/optimizing/ssa_builder.h
index 64600db..dc76177 100644
--- a/compiler/optimizing/ssa_builder.h
+++ b/compiler/optimizing/ssa_builder.h
@@ -52,8 +52,8 @@
       : HGraphVisitor(graph),
         current_locals_(nullptr),
         loop_headers_(graph->GetArena(), kDefaultNumberOfLoops),
-        locals_for_(graph->GetArena(), graph->GetBlocks().Size()) {
-    locals_for_.SetSize(graph->GetBlocks().Size());
+        locals_for_(graph->GetArena(), graph->GetBlocks().size()) {
+    locals_for_.SetSize(graph->GetBlocks().size());
   }
 
   void BuildSsa();