Emit unwinding information for TurboFan code.

src/compiler/code-generator.h

Index: src/compiler/code-generator.h
diff --git a/src/compiler/code-generator.h b/src/compiler/code-generator.h
index d9fa7e5ebbbc4305231f7b17668d14dacdab10d1..353632db93f014f9595980dbf2e70d11ab2992d0 100644
--- a/src/compiler/code-generator.h
+++ b/src/compiler/code-generator.h
@@ -5,8 +5,10 @@
 #ifndef V8_COMPILER_CODE_GENERATOR_H_
 #define V8_COMPILER_CODE_GENERATOR_H_
 
+#include "src/base/smart-pointers.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/instruction.h"
+#include "src/compiler/unwinding-info-writer.h"
 #include "src/deoptimizer.h"
 #include "src/macro-assembler.h"
 #include "src/safepoint-table.h"
@@ -252,6 +254,7 @@ class CodeGenerator final : public GapResolver::Assembler {
   friend class OutOfLineCode;
 
   FrameAccessState* frame_access_state_;
+  base::SmartPointer<UnwindingInfoWriter> unwinding_info_writer_;
   Linkage* const linkage_;
   InstructionSequence* const code_;
   CompilationInfo* const info_;