Extend CPU profiler with mapping ticks to source lines

src/full-codegen.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/codegen.h"
 #include "src/compiler.h"
 #include "src/debug.h"
 #include "src/full-codegen.h"
@@ skipping 830 matching lines @@
     if (position_recorded) {
       DebugCodegen::GenerateSlot(masm_);
     }
   }
 }
 
 
 void FullCodeGenerator::SetSourcePosition(int pos) {
   if (pos != RelocInfo::kNoPosition) {
     masm_->positions_recorder()->RecordPosition(pos);
+    masm_->positions_recorder()->WriteRecordedPositions();
   }
 }
 
 
 // Lookup table for code generators for  special runtime calls which are
 // generated inline.
 #define INLINE_FUNCTION_GENERATOR_ADDRESS(Name, argc, ressize)          \
     &FullCodeGenerator::Emit##Name,
 
 const FullCodeGenerator::InlineFunctionGenerator
@@ skipping 821 matching lines @@
   }
   return true;
 }
 #endif  // DEBUG
 
 
 #undef __
 
 
 } }  // namespace v8::internal