Fix lazy deopt after tagged binary ops

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index e6affca3016e7e964278c7f85166c5682a444b51..f02a04f99a3f2b60a8667954d8b0e90f9f9a409b 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -2721,8 +2721,7 @@ class LChunkBuilder V8_FINAL : public LChunkBuilderBase {
         current_block_(NULL),
         next_block_(NULL),
         allocator_(allocator),
-        instruction_pending_deoptimization_environment_(NULL),
-        pending_deoptimization_ast_id_(BailoutId::None()) { }
+        instruction_pending_deoptimization_environment_(NULL) { }
 
   // Build the sequence for the graph.
   LPlatformChunk* Build();
@@ -2867,7 +2866,6 @@ class LChunkBuilder V8_FINAL : public LChunkBuilderBase {
   HBasicBlock* next_block_;
   LAllocator* allocator_;
   LInstruction* instruction_pending_deoptimization_environment_;
-  BailoutId pending_deoptimization_ast_id_;
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };