Dump source position tabe under --print-code

src/objects.cc

 // 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.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 14315 matching lines @@
       Vector<char> buf = Vector<char>::New(50);
       intptr_t* ptr = reinterpret_cast<intptr_t*>(begin + constant_pool_offset);
       for (int i = 0; i < constant_pool_size; i += kPointerSize, ptr++) {
         SNPrintF(buf, "%4d %08" V8PRIxPTR, i, *ptr);
         os << static_cast<const void*>(ptr) << "  " << buf.start() << "\n";
       }
     }
   }
   os << "\n";
 
+  SourcePositionTableIterator it(source_position_table());
+  if (!it.done()) {
+    os << "Source positions:\n pc offset  position\n";
+    for (; !it.done(); it.Advance()) {
+      os << std::setw(10) << it.code_offset() << std::setw(10)
+         << it.source_position() << (it.is_statement() ? "  statement" : "")
+         << "\n";
+    }
+    os << "\n";
+  }
+
   if (kind() == FUNCTION) {
     DeoptimizationOutputData* data =
         DeoptimizationOutputData::cast(this->deoptimization_data());
     data->DeoptimizationOutputDataPrint(os);
   } else if (kind() == OPTIMIZED_FUNCTION) {
     DeoptimizationInputData* data =
         DeoptimizationInputData::cast(this->deoptimization_data());
     data->DeoptimizationInputDataPrint(os);
   }
   os << "\n";
@@ skipping 4603 matching lines @@
 
   Object* data_obj =
       constructor->shared()->get_api_func_data()->access_check_info();
   if (data_obj->IsUndefined(isolate)) return nullptr;
 
   return AccessCheckInfo::cast(data_obj);
 }
 
 }  // namespace internal
 }  // namespace v8