Merged r19834, r19843 into 3.23 branch.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 80b228e0a6521bff5f093dedf7a96efcf07e8a6a..dc15c97c44c9cb19d44f7ff237ecd2b38d898f27 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -2687,9 +2687,7 @@ class LChunkBuilder V8_FINAL BASE_EMBEDDED {
         current_block_(NULL),
         next_block_(NULL),
         argument_count_(0),
-        allocator_(allocator),
-        instruction_pending_deoptimization_environment_(NULL),
-        pending_deoptimization_ast_id_(BailoutId::None()) { }
+        allocator_(allocator) { }
 
   // Build the sequence for the graph.
   LPlatformChunk* Build();
@@ -2840,8 +2838,6 @@ class LChunkBuilder V8_FINAL BASE_EMBEDDED {
   HBasicBlock* next_block_;
   int argument_count_;
   LAllocator* allocator_;
-  LInstruction* instruction_pending_deoptimization_environment_;
-  BailoutId pending_deoptimization_ast_id_;
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };