Lazy deopt without code patching.

runtime/vm/raw_object.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_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/atomic.h"
 #include "vm/globals.h"
@@ skipping 1147 matching lines @@
 
   // Compilation timestamp.
   NOT_IN_PRECOMPILED(int64_t compile_timestamp_);
 
   // state_bits_ is a bitfield with three fields:
   // The optimized bit, the alive bit, and a count of the number of pointer
   // offsets.
   // Alive: If true, the embedded object pointers will be visited during GC.
   int32_t state_bits_;
 
-  // PC offsets for code patching.
-  NOT_IN_PRECOMPILED(int32_t lazy_deopt_return_pc_offset_);
-  NOT_IN_PRECOMPILED(int32_t lazy_deopt_throw_pc_offset_);
-
   // Variable length data follows here.
   int32_t* data() { OPEN_ARRAY_START(int32_t, int32_t); }
   const int32_t* data() const { OPEN_ARRAY_START(int32_t, int32_t); }
 
   static bool ContainsPC(RawObject* raw_obj, uword pc);
 
   friend class Function;
   template<bool> friend class MarkingVisitorBase;
   friend class SkippedCodeFunctions;
   friend class StackFrame;
@@ skipping 1304 matching lines @@
   COMPILE_ASSERT(kExternalTypedDataInt8ArrayCid ==
                  kTypedDataInt8ArrayViewCid + 15);
   COMPILE_ASSERT(kByteBufferCid == kExternalTypedDataInt8ArrayCid + 14);
   COMPILE_ASSERT(kNullCid == kByteBufferCid + 1);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_