Use source position table in turbofan 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 5249 matching lines @@
   // Returns the object size for a given body (used for allocation).
   static int SizeFor(int body_size) {
     DCHECK_SIZE_TAG_ALIGNED(body_size);
     return RoundUp(kHeaderSize + body_size, kCodeAlignment);
   }
 
   // Calculate the size of the code object to report for log events. This takes
   // the layout of the code object into account.
   inline int ExecutableSize();
 
-  // Locating source position.
-  int SourcePosition(int code_offset);
-  int SourceStatementPosition(int code_offset);
-
   DECLARE_CAST(Code)
 
   // Dispatched behavior.
   inline int CodeSize();
 
   DECLARE_PRINTER(Code)
   DECLARE_VERIFIER(Code)
 
   void ClearInlineCaches();
 
@@ skipping 206 matching lines @@
 
   // Returns the address of the first instruction.
   inline Address instruction_start();
 
   // Returns the address right after the last instruction.
   inline Address instruction_end();
 
   // Returns the size of the code instructions.
   inline int instruction_size();
 
+  // Return the source position table.
+  inline ByteArray* source_position_table();
+
   // Returns the size of instructions and the metadata.
   inline int SizeIncludingMetadata();
 
   // Returns true if pc is inside this object's instructions.
   inline bool contains(byte* pc);
 
   // Returns the AbstractCode::Kind of the code.
   inline Kind kind();
 
   // Calculate the size of the code object to report for log events. This takes
@@ skipping 5412 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_