Ensure that all goto instructions have deoptimization target.

runtime/vm/stack_frame.cc

 // 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.
 
 #include "vm/stack_frame.h"
 
 #include "vm/assembler.h"
 #include "vm/deopt_instructions.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 314 matching lines @@
 
   if (deopt_info_.IsNull()) {
     SetDone();
     return;
   }
 
   Function& func = Function::Handle();
   ASSERT(deopt_instructions_.length() != 0);
   while (index_ < deopt_instructions_.length()) {
     DeoptInstr* deopt_instr = deopt_instructions_[index_++];
-    ASSERT(deopt_instr->kind() != DeoptInstr::kRetBeforeAddress);
-    if (deopt_instr->kind() == DeoptInstr::kRetAfterAddress) {
-      pc_ = DeoptInstr::GetRetAfterAddress(deopt_instr,
-                                           object_table_,
-                                           &func);
+    if (deopt_instr->kind() == DeoptInstr::kRetAddress) {
+      pc_ = DeoptInstr::GetRetAddress(deopt_instr, object_table_, &func);
       code_ = func.unoptimized_code();
       function_ = func.raw();
       return;
     }
   }
   SetDone();
 }
 
 }  // namespace dart