Use source position table for unoptimized code.

src/objects.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 4907 matching lines @@
   DECL_ACCESSORS(relocation_info, ByteArray)
   void InvalidateRelocation();
   void InvalidateEmbeddedObjects();
 
   // [handler_table]: Fixed array containing offsets of exception handlers.
   DECL_ACCESSORS(handler_table, FixedArray)
 
   // [deoptimization_data]: Array containing data for deopt.
   DECL_ACCESSORS(deoptimization_data, FixedArray)
 
+  // [source_position_table]: ByteArray for the source positions table.
+  DECL_ACCESSORS(source_position_table, ByteArray)
+
   // [raw_type_feedback_info]: This field stores various things, depending on
   // the kind of the code object.
   //   FUNCTION           => type feedback information.
   //   STUB and ICs       => major/minor key as Smi.
   DECL_ACCESSORS(raw_type_feedback_info, Object)
   inline Object* type_feedback_info();
   inline void set_type_feedback_info(
       Object* value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
   inline uint32_t stub_key();
   inline void set_stub_key(uint32_t key);
@@ skipping 301 matching lines @@
   static const int kMaxLoopNestingMarker = 6;
 
   static const int kConstantPoolSize =
       FLAG_enable_embedded_constant_pool ? kIntSize : 0;
 
   // Layout description.
   static const int kRelocationInfoOffset = HeapObject::kHeaderSize;
   static const int kHandlerTableOffset = kRelocationInfoOffset + kPointerSize;
   static const int kDeoptimizationDataOffset =
       kHandlerTableOffset + kPointerSize;
+  static const int kSourcePositionTableOffset =
+      kDeoptimizationDataOffset + kPointerSize;
   // For FUNCTION kind, we store the type feedback info here.
   static const int kTypeFeedbackInfoOffset =
-      kDeoptimizationDataOffset + kPointerSize;
+      kSourcePositionTableOffset + kPointerSize;
   static const int kNextCodeLinkOffset = kTypeFeedbackInfoOffset + kPointerSize;
   static const int kGCMetadataOffset = kNextCodeLinkOffset + kPointerSize;
   static const int kInstructionSizeOffset = kGCMetadataOffset + kPointerSize;
   static const int kICAgeOffset = kInstructionSizeOffset + kIntSize;
   static const int kFlagsOffset = kICAgeOffset + kIntSize;
   static const int kKindSpecificFlags1Offset = kFlagsOffset + kIntSize;
   static const int kKindSpecificFlags2Offset =
       kKindSpecificFlags1Offset + kIntSize;
   // Note: We might be able to squeeze this into the flags above.
   static const int kPrologueOffset = kKindSpecificFlags2Offset + kIntSize;
@@ skipping 5563 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_