Replace 'operator*' with explicit 'get' method on SmartPointer

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 25bc54685f4435d384acce81177734073374172e..12ced01dd377c61c1301f29a2a5bd0b6e7b7b627 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1182,7 +1182,7 @@ void Isolate::DoThrow(Object* exception, MessageLocation* location) {
         fatal_exception_depth++;
         PrintF(stderr,
                "%s\n\nFROM\n",
-               *MessageHandler::GetLocalizedMessage(this, message_obj));
+               MessageHandler::GetLocalizedMessage(this, message_obj).get());
         PrintCurrentStackTrace(stderr);
         OS::Abort();
       }
@@ -1197,13 +1197,13 @@ void Isolate::DoThrow(Object* exception, MessageLocation* location) {
       if (exception->IsString() && location->script()->name()->IsString()) {
         OS::PrintError(
             "Extension or internal compilation error: %s in %s at line %d.\n",
-            *String::cast(exception)->ToCString(),
-            *String::cast(location->script()->name())->ToCString(),
+            String::cast(exception)->ToCString().get(),
+            String::cast(location->script()->name())->ToCString().get(),
             line_number + 1);
       } else if (location->script()->name()->IsString()) {
         OS::PrintError(
             "Extension or internal compilation error in %s at line %d.\n",
-            *String::cast(location->script()->name())->ToCString(),
+            String::cast(location->script()->name())->ToCString().get(),
             line_number + 1);
       } else {
         OS::PrintError("Extension or internal compilation error.\n");