[Interpreter] Log source positions for bytecode arrays.

src/profiler/cpu-profiler.cc

 // Copyright 2012 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/profiler/cpu-profiler.h"
 
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/frames-inl.h"
 #include "src/locked-queue-inl.h"
@@ skipping 269 matching lines @@
           int position = static_cast<int>(it.rinfo()->data());
           if (position >= 0) {
             int pc_offset =
                 static_cast<int>(it.rinfo()->pc() - code->address());
             int line_number = script->GetLineNumber(position) + 1;
             line_table->SetPosition(pc_offset, line_number);
           }
         }
       }
     } else {
-      DCHECK(abstract_code->IsBytecodeArray());
-      // TODO(rmcilroy): source position tracking for bytecode arrays.
+      BytecodeArray* bytecode = abstract_code->GetBytecodeArray();
+      line_table = new JITLineInfoTable();
+      interpreter::SourcePositionTableIterator it(
+          bytecode->source_position_table());
+      for (; !it.done(); it.Advance()) {
+        int line_number = script->GetLineNumber(it.source_position()) + 1;
+        int pc_offset = it.bytecode_offset() + BytecodeArray::kHeaderSize;
+        line_table->SetPosition(pc_offset, line_number);
+      }
     }
   }
   rec->entry = profiles_->NewCodeEntry(
       tag, profiles_->GetFunctionName(shared->DebugName()),
       CodeEntry::kEmptyNamePrefix, profiles_->GetName(script_name), line,
       column, line_table, abstract_code->instruction_start());
   RecordInliningInfo(rec->entry, abstract_code);
   if (info) {
     rec->entry->set_inlined_function_infos(info->inlined_function_infos());
   }
@@ skipping 269 matching lines @@
     Builtins::Name id = static_cast<Builtins::Name>(i);
     rec->start = builtins->builtin(id)->address();
     rec->builtin_id = id;
     processor_->Enqueue(evt_rec);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8