v8::TryCatch now works correctly with ASAN's UseAfterReturn mode enabled.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index e089b41818f12d2109f4fde96647806d16045d12..e56e42be957b75d459b63fa387d539c89dffcec4 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -5076,6 +5076,8 @@ class V8_EXPORT TryCatch {
   void SetCaptureMessage(bool value);
 
  private:
+  TryCatch* DesanitizedThis();
+
   // Make it hard to create heap-allocated TryCatch blocks.
   TryCatch(const TryCatch&);
   void operator=(const TryCatch&);
@@ -5087,6 +5089,7 @@ class V8_EXPORT TryCatch {
   void* exception_;
   void* message_obj_;
   void* message_script_;
+  void* asan_fake_stack_handle_;
   int message_start_pos_;
   int message_end_pos_;
   bool is_verbose_ : 1;