NewError no longer returns a MaybeObject.

src/runtime/runtime-scopes.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/frames-inl.h"
 #include "src/runtime/runtime-utils.h"
@@ skipping 887 matching lines @@
     DCHECK(holder->IsContext());
     // If the "property" we were looking for is a local variable, the
     // receiver is the global object; see ECMA-262, 3rd., 10.1.6 and 10.2.3.
     Handle<Object> receiver = isolate->factory()->undefined_value();
     Object* value = Context::cast(*holder)->get(index);
     // Check for uninitialized bindings.
     switch (binding_flags) {
       case MUTABLE_CHECK_INITIALIZED:
       case IMMUTABLE_CHECK_INITIALIZED_HARMONY:
         if (value->IsTheHole()) {
-          Handle<Object> error;
-          MaybeHandle<Object> maybe_error =
-              isolate->factory()->NewReferenceError("not_defined",
-                                                    HandleVector(&name, 1));
-          if (maybe_error.ToHandle(&error)) isolate->Throw(*error);
+          Handle<Object> error = isolate->factory()->NewReferenceError(
+              "not_defined", HandleVector(&name, 1));
+          isolate->Throw(*error);
           return MakePair(isolate->heap()->exception(), NULL);
         }
       // FALLTHROUGH
       case MUTABLE_IS_INITIALIZED:
       case IMMUTABLE_IS_INITIALIZED:
       case IMMUTABLE_IS_INITIALIZED_HARMONY:
         DCHECK(!value->IsTheHole());
         return MakePair(value, *receiver);
       case IMMUTABLE_CHECK_INITIALIZED:
         if (value->IsTheHole()) {
@@ skipping 32 matching lines @@
     // GetProperty function.
     Handle<Object> value;
     ASSIGN_RETURN_ON_EXCEPTION_VALUE(
         isolate, value, Object::GetProperty(object, name),
         MakePair(isolate->heap()->exception(), NULL));
     return MakePair(*value, *receiver_handle);
   }
 
   if (throw_error) {
     // The property doesn't exist - throw exception.
-    Handle<Object> error;
-    MaybeHandle<Object> maybe_error = isolate->factory()->NewReferenceError(
+    Handle<Object> error = isolate->factory()->NewReferenceError(
         "not_defined", HandleVector(&name, 1));
-    if (maybe_error.ToHandle(&error)) isolate->Throw(*error);
+    isolate->Throw(*error);
     return MakePair(isolate->heap()->exception(), NULL);
   } else {
     // The property doesn't exist - return undefined.
     return MakePair(isolate->heap()->undefined_value(),
                     isolate->heap()->undefined_value());
   }
 }
 
 
 RUNTIME_FUNCTION_RETURN_PAIR(Runtime_LoadLookupSlot) {
@@ skipping 146 matching lines @@
   return Smi::FromInt(frame->GetArgumentsLength());
 }
 
 
 RUNTIME_FUNCTION(RuntimeReference_Arguments) {
   SealHandleScope shs(isolate);
   return __RT_impl_Runtime_GetArgumentsProperty(args, isolate);
 }
 }
 }  // namespace v8::internal