[turbofan] Loop peeling with explicit loop exits.

src/compiler/loop-peeling.h

Index: src/compiler/loop-peeling.h
diff --git a/src/compiler/loop-peeling.h b/src/compiler/loop-peeling.h
index 3ee20743bd227e6978fde537cd15e5fcc33a842d..8b38e2575c9091b0aa65026664a0e4bccebbe871 100644
--- a/src/compiler/loop-peeling.h
+++ b/src/compiler/loop-peeling.h
@@ -33,7 +33,11 @@ class LoopPeeler {
   static PeeledIteration* Peel(Graph* graph, CommonOperatorBuilder* common,
                                LoopTree* loop_tree, LoopTree::Loop* loop,
                                Zone* tmp_zone);
+  static void PeelInnerLoopsOfTree(Graph* graph, CommonOperatorBuilder* common,
+                                   LoopTree* loop_tree, Zone* tmp_zone);
+
   static void EliminateLoopExits(Graph* graph, Zone* temp_zone);
+  static const size_t kMaxPeeledNodes = 1000;
 };