[wasm] Initial signal handler

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index 9c5dd0cd73ec7be83eecb9cf5242ead0845da11b..bc2e0f715e52d50f9059fbe08081108be6e128cf 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -32,6 +32,7 @@
 #include "src/interpreter/interpreter.h"
 #include "src/msan.h"
 #include "src/snapshot/natives.h"
+#include "src/trap-handler/trap-handler.h"
 #include "src/utils.h"
 #include "src/v8.h"
 
@@ -2988,6 +2989,10 @@ int Shell::Main(int argc, char* argv[]) {
     create_params.add_histogram_sample_callback = AddHistogramSample;
   }
 
+  if (i::trap_handler::EnableTrapHandler()) {
+    v8::V8::RegisterDefaultSignalHandler();
+  }
+
   Isolate* isolate = Isolate::New(create_params);
   {
     Isolate::Scope scope(isolate);