[interpreter] Make d8's TryCatch block be verbose.

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index c58c172640edfd31fe0c2e876c8ab98f739cd869..e35b6a7fbcbe013b830d4f0bea9566f0285d116f 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -375,6 +375,7 @@ bool Shell::ExecuteString(Isolate* isolate, Local<String> source,
                           bool report_exceptions, SourceType source_type) {
   HandleScope handle_scope(isolate);
   TryCatch try_catch(isolate);
+  try_catch.SetVerbose(true);
 
   MaybeLocal<Value> maybe_result;
   {
@@ -1247,6 +1248,10 @@ Local<ObjectTemplate> Shell::CreateGlobalTemplate(Isolate* isolate) {
   return global_template;
 }
 
+static void EmptyMessageCallback(Local<Message> message, Local<Value> error) {
+  // Nothing to be done here, exceptions thrown up to the shell will be reported
+  // separately by {Shell::ReportException} after they are caught.
+}
 
 void Shell::Initialize(Isolate* isolate) {
 #ifndef V8_SHARED
@@ -1254,6 +1259,8 @@ void Shell::Initialize(Isolate* isolate) {
   if (i::StrLength(i::FLAG_map_counters) != 0)
     MapCounters(isolate, i::FLAG_map_counters);
 #endif  // !V8_SHARED
+  // Disable default message reporting.
+  isolate->AddMessageListener(EmptyMessageCallback);
 }