Revert "Make v8::TryCatch able to consume natively thrown exceptions (again)."

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 08948fcc3fde66856a2d8ad7bd100f6281462455..9572046a40e01274aeafa9b626ed6c77b48130c7 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -908,15 +908,6 @@ void Isolate::RestorePendingMessageFromTryCatch(v8::TryCatch* handler) {
 }
 
 
-void Isolate::CancelScheduledExceptionFromTryCatch(v8::TryCatch* handler) {
-  ASSERT(has_scheduled_exception());
-  if (scheduled_exception() == handler->exception_) {
-    ASSERT(scheduled_exception() != heap()->termination_exception());
-    clear_scheduled_exception();
-  }
-}
-
-
 Object* Isolate::PromoteScheduledException() {
   Object* thrown = scheduled_exception();
   clear_scheduled_exception();
@@ -1222,7 +1213,8 @@ void Isolate::ReportPendingMessages() {
   PropagatePendingExceptionToExternalTryCatch();
 
   HandleScope scope(this);
-  if (thread_local_top_.pending_exception_ == heap()->termination_exception()) {
+  if (thread_local_top_.pending_exception_ ==
+          heap()->termination_exception()) {
     // Do nothing: if needed, the exception has been already propagated to
     // v8::TryCatch.
   } else {
@@ -1759,7 +1751,8 @@ void Isolate::PropagatePendingExceptionToExternalTryCatch() {
 
   if (!external_caught) return;
 
-  if (thread_local_top_.pending_exception_ == heap()->termination_exception()) {
+  if (thread_local_top_.pending_exception_ ==
+             heap()->termination_exception()) {
     try_catch_handler()->can_continue_ = false;
     try_catch_handler()->has_terminated_ = true;
     try_catch_handler()->exception_ = heap()->null_value();