Fix deoptimzation bug in hoisting smi operation out of loops.

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 14014)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -519,6 +519,7 @@
   friend class UnboxDoubleInstr;
   friend class BinaryDoubleOpInstr;
   friend class BinaryMintOpInstr;
+  friend class BinarySmiOpInstr;
   friend class ShiftMintOpInstr;
   friend class UnaryMintOpInstr;
   friend class MathSqrtInstr;
@@ -3749,6 +3750,7 @@
     ASSERT(right != NULL);
     inputs_[0] = left;
     inputs_[1] = right;
+    deopt_id_ = instance_call->deopt_id();
   }
 
   Value* left() const { return inputs_[0]; }