Emit unwinding information for TurboFan code.

src/v8.gyp

Index: src/v8.gyp
diff --git a/src/v8.gyp b/src/v8.gyp
index e6b8cfec65aeabf7cb0153d584cb3112b2c31737..9be237cc0c8955ad66af4d876b4bec8aea7bb161 100644
--- a/src/v8.gyp
+++ b/src/v8.gyp
@@ -680,6 +680,7 @@
         'compiler/type-hints.h',
         'compiler/typer.cc',
         'compiler/typer.h',
+        'compiler/unwinding-info-writer.h',
         'compiler/value-numbering-reducer.cc',
         'compiler/value-numbering-reducer.h',
         'compiler/verifier.cc',
@@ -1234,6 +1235,8 @@
             'compiler/arm/instruction-codes-arm.h',
             'compiler/arm/instruction-scheduler-arm.cc',
             'compiler/arm/instruction-selector-arm.cc',
+            'compiler/arm/unwinding-info-writer-arm.h',
+            'compiler/arm/unwinding-info-writer-arm.cc',
             'crankshaft/arm/lithium-arm.cc',
             'crankshaft/arm/lithium-arm.h',
             'crankshaft/arm/lithium-codegen-arm.cc',
@@ -1289,6 +1292,8 @@
             'compiler/arm64/instruction-codes-arm64.h',
             'compiler/arm64/instruction-scheduler-arm64.cc',
             'compiler/arm64/instruction-selector-arm64.cc',
+            'compiler/arm64/unwinding-info-writer-arm64.h',
+            'compiler/arm64/unwinding-info-writer-arm64.cc',
             'crankshaft/arm64/delayed-masm-arm64.cc',
             'crankshaft/arm64/delayed-masm-arm64.h',
             'crankshaft/arm64/delayed-masm-arm64-inl.h',
@@ -1514,6 +1519,8 @@
             'compiler/x64/instruction-codes-x64.h',
             'compiler/x64/instruction-scheduler-x64.cc',
             'compiler/x64/instruction-selector-x64.cc',
+            'compiler/x64/unwinding-info-writer-x64.h',
+            'compiler/x64/unwinding-info-writer-x64.cc',
             'x64/eh-frame-x64.cc',
           ],
         }],