Correctly compute line numbers in functions from the function constructor.

src/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/v8.h"
 
 #include "src/cpu-profiler-inl.h"
 
 #include "src/compiler.h"
 #include "src/frames-inl.h"
@@ skipping 254 matching lines @@
   Script* script = Script::cast(shared->script());
   JITLineInfoTable* line_table = NULL;
   if (script) {
     line_table = new JITLineInfoTable();
     for (RelocIterator it(code); !it.done(); it.next()) {
       RelocInfo::Mode mode = it.rinfo()->rmode();
       if (RelocInfo::IsPosition(mode)) {
         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);
+          int line_number = script->GetLineNumber(position);
+          line_table->SetPosition(pc_offset, line_number + 1);
         }
       }
     }
   }
   rec->entry = profiles_->NewCodeEntry(
       tag, profiles_->GetFunctionName(shared->DebugName()),
       CodeEntry::kEmptyNamePrefix, profiles_->GetName(script_name), line,
       column, line_table, code->instruction_start());
   if (info) {
     rec->entry->set_no_frame_ranges(info->ReleaseNoFrameRanges());
@@ skipping 232 matching lines @@
     ReportBuiltinEventRecord* rec = &evt_rec.ReportBuiltinEventRecord_;
     Builtins::Name id = static_cast<Builtins::Name>(i);
     rec->start = builtins->builtin(id)->address();
     rec->builtin_id = id;
     processor_->Enqueue(evt_rec);
   }
 }
 
 
 } }  // namespace v8::internal