Fix lazy deopt after tagged binary ops

src/mips/lithium-mips.h

Index: src/mips/lithium-mips.h
diff --git a/src/mips/lithium-mips.h b/src/mips/lithium-mips.h
index 45b6cb5745201d1c3d07f8ecf003a6afca83ab7d..f331fd09993f806455212a026544e4bc4a272d4d 100644
--- a/src/mips/lithium-mips.h
+++ b/src/mips/lithium-mips.h
@@ -2643,8 +2643,7 @@ 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();
@@ -2785,7 +2784,6 @@ 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);
 };