Fix bug with deoptimization targets.

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 30222)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -4507,6 +4507,10 @@
 
   virtual bool CanDeoptimize() const { return false; }
 
+  virtual intptr_t DeoptimizationTarget() const {
+    return Isolate::kNoDeoptId;
+  }
+
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT(idx == 0);
     return kUnboxedDouble;
@@ -4536,6 +4540,10 @@
 
   virtual bool CanDeoptimize() const { return false; }
 
+  virtual intptr_t DeoptimizationTarget() const {
+    return Isolate::kNoDeoptId;
+  }
+
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT(idx == 0);
     return kUnboxedFloat32x4;
@@ -4568,6 +4576,10 @@
 
   virtual bool CanDeoptimize() const { return false; }
 
+  virtual intptr_t DeoptimizationTarget() const {
+    return Isolate::kNoDeoptId;
+  }
+
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT(idx == 0);
     return kUnboxedInt32x4;
@@ -4600,6 +4612,10 @@
 
   virtual bool CanDeoptimize() const { return false; }
 
+  virtual intptr_t DeoptimizationTarget() const {
+    return Isolate::kNoDeoptId;
+  }
+
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT(idx == 0);
     return kUnboxedMint;