Adjust environments we attach to the block entries.

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
diff --git a/runtime/vm/intermediate_language.h b/runtime/vm/intermediate_language.h
index 5d5b537ff3491041df41733f9e96223d5bedf745..02812cb6bf686de24a81aef70eac0bb8d6d62682 100644
--- a/runtime/vm/intermediate_language.h
+++ b/runtime/vm/intermediate_language.h
@@ -840,7 +840,9 @@ FOR_EACH_ABSTRACT_INSTRUCTION(INSTRUCTION_TYPE_CHECK)
     return false;
   }
 
-  void InheritDeoptTargetAfter(Isolate* isolate, Instruction* other);
+  void InheritDeoptTargetAfter(FlowGraph* flow_graph,
+                               Definition* call,
+                               Definition* result);
 
   virtual bool MayThrow() const = 0;
 
@@ -7910,6 +7912,12 @@ class Environment : public ZoneAllocated {
   void DeepCopyTo(Isolate* isolate, Instruction* instr) const;
   void DeepCopyToOuter(Isolate* isolate, Instruction* instr) const;
 
+  void DeepCopyAfterTo(Isolate* isolate,
+                       Instruction* instr,
+                       intptr_t argc,
+                       Definition* dead,
+                       Definition* result) const;
+
   void PrintTo(BufferFormatter* f) const;
   const char* ToCString() const;