Fix for issue 7757

runtime/vm/deopt_instructions.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_DEOPT_INSTRUCTIONS_H_
 #define VM_DEOPT_INSTRUCTIONS_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
@@ skipping 105 matching lines @@
                        intptr_t to_index) = 0;
 
   bool Equals(const DeoptInstr& other) const {
     return (kind() == other.kind()) && (from_index() == other.from_index());
   }
 
   // Decode the payload of a suffix command.  Return the suffix length and
   // set the output parameter info_number to the index of the shared suffix.
   static intptr_t DecodeSuffix(intptr_t from_index, intptr_t* info_number);
 
+  // Get the function and return address which is encoded in this
+  // kRetAfterAddress deopt instruction.
+  static uword GetRetAfterAddress(intptr_t deopt_from_index,
+                                  const Array& object_table,
+                                  Function* func);
+
  protected:
   virtual DeoptInstr::Kind kind() const = 0;
   virtual intptr_t from_index() const = 0;
 
   friend class DeoptInfoBuilder;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DeoptInstr);
 };
 
@@ skipping 75 matching lines @@
                        DeoptInfo* info,
                        Smi* reason);
 
  private:
   static const intptr_t kEntrySize = 3;
 };
 
 }  // namespace dart
 
 #endif  // VM_DEOPT_INSTRUCTIONS_H_