Pack deopt ID into the return before and return after deopt instructions.

runtime/vm/object.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/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
@@ skipping 6457 matching lines @@
 
 const char* PcDescriptors::ToCString() const {
   if (Length() == 0) {
     return "No pc descriptors\n";
   }
   // 4 bits per hex digit.
   const int addr_width = kBitsPerWord / 4;
   // "*" in a printf format specifier tells it to read the field width from
   // the printf argument list.
   const char* kFormat =
-      "%#-*"Px"\t%s\t%"Pd"\t%"Pd"\t%"Pd"\n";
+      "%#-*"Px"\t%s\t%"Pd"\t\t%"Pd"\t%"Pd"\n";
   // First compute the buffer size required.
   intptr_t len = 1;  // Trailing '\0'.
   for (intptr_t i = 0; i < Length(); i++) {
     len += OS::SNPrint(NULL, 0, kFormat, addr_width,
                        PC(i),
                        KindAsStr(i),
                        DeoptId(i),
                        TokenPos(i),
                        TryIndex(i));
   }
@@ skipping 5643 matching lines @@
   }
   return result.raw();
 }
 
 
 const char* WeakProperty::ToCString() const {
   return "_WeakProperty";
 }
 
 }  // namespace dart