ART: Run GraphChecker after Builder and SsaBuilder

This patch refactors the way GraphChecker is invoked, utilizing the
same scoping mechanism as pass timing and graph visualizer. Therefore,
GraphChecker will now run not just after instances of HOptimization
but after the builders and reg alloc, too.

Change-Id: I8173b98b79afa95e1fcbf3ac9630a873d7f6c1d4
diff --git a/compiler/optimizing/licm.h b/compiler/optimizing/licm.h
index cb6170e..0b5a0f1 100644
--- a/compiler/optimizing/licm.h
+++ b/compiler/optimizing/licm.h
@@ -27,7 +27,7 @@
 class LICM : public HOptimization {
  public:
   LICM(HGraph* graph, const SideEffectsAnalysis& side_effects)
-      : HOptimization(graph, true, kLoopInvariantCodeMotionPassName), side_effects_(side_effects) {}
+      : HOptimization(graph, kLoopInvariantCodeMotionPassName), side_effects_(side_effects) {}
 
   void Run() OVERRIDE;