NewError no longer returns a MaybeObject.

src/factory.h

 // 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.
 
 #ifndef V8_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/isolate.h"
 
 namespace v8 {
@@ skipping 501 matching lines @@
                        bool crankshafted = false,
                        int prologue_offset = Code::kPrologueOffsetNotSet,
                        bool is_debug = false);
 
   Handle<Code> CopyCode(Handle<Code> code);
 
   Handle<Code> CopyCode(Handle<Code> code, Vector<byte> reloc_info);
 
   // Interface for creating error objects.
 
-  MaybeHandle<Object> NewError(const char* maker, const char* message,
-                               Handle<JSArray> args);
+  Handle<Object> NewError(const char* maker, const char* message,
+                          Handle<JSArray> args);
   Handle<String> EmergencyNewError(const char* message, Handle<JSArray> args);
-  MaybeHandle<Object> NewError(const char* maker, const char* message,
+  Handle<Object> NewError(const char* maker, const char* message,
+                          Vector<Handle<Object> > args);
+  Handle<Object> NewError(const char* message, Vector<Handle<Object> > args);
+  Handle<Object> NewError(Handle<String> message);
+  Handle<Object> NewError(const char* constructor, Handle<String> message);
+
+  Handle<Object> NewTypeError(const char* message,
+                              Vector<Handle<Object> > args);
+  Handle<Object> NewTypeError(Handle<String> message);
+
+  Handle<Object> NewRangeError(const char* message,
                                Vector<Handle<Object> > args);
-  MaybeHandle<Object> NewError(const char* message,
-                               Vector<Handle<Object> > args);
-  MaybeHandle<Object> NewError(Handle<String> message);
-  MaybeHandle<Object> NewError(const char* constructor, Handle<String> message);
+  Handle<Object> NewRangeError(Handle<String> message);
 
-  MaybeHandle<Object> NewTypeError(const char* message,
-                                   Vector<Handle<Object> > args);
-  MaybeHandle<Object> NewTypeError(Handle<String> message);
-
-  MaybeHandle<Object> NewRangeError(const char* message,
-                                    Vector<Handle<Object> > args);
-  MaybeHandle<Object> NewRangeError(Handle<String> message);
-
-  MaybeHandle<Object> NewInvalidStringLengthError() {
+  Handle<Object> NewInvalidStringLengthError() {
     return NewRangeError("invalid_string_length",
                          HandleVector<Object>(NULL, 0));
   }
 
-  MaybeHandle<Object> NewSyntaxError(const char* message, Handle<JSArray> args);
-  MaybeHandle<Object> NewSyntaxError(Handle<String> message);
+  Handle<Object> NewSyntaxError(const char* message, Handle<JSArray> args);
+  Handle<Object> NewSyntaxError(Handle<String> message);
 
-  MaybeHandle<Object> NewReferenceError(const char* message,
-                                        Vector<Handle<Object> > args);
-  MaybeHandle<Object> NewReferenceError(const char* message,
-                                        Handle<JSArray> args);
-  MaybeHandle<Object> NewReferenceError(Handle<String> message);
+  Handle<Object> NewReferenceError(const char* message,
+                                   Vector<Handle<Object> > args);
+  Handle<Object> NewReferenceError(const char* message, Handle<JSArray> args);
+  Handle<Object> NewReferenceError(Handle<String> message);
 
-  MaybeHandle<Object> NewEvalError(const char* message,
-                                   Vector<Handle<Object> > args);
+  Handle<Object> NewEvalError(const char* message,
+                              Vector<Handle<Object> > args);
 
   Handle<String> NumberToString(Handle<Object> number,
                                 bool check_number_string_cache = true);
 
   Handle<String> Uint32ToString(uint32_t value) {
     return NumberToString(NewNumberFromUint(value));
   }
 
   Handle<JSFunction> InstallMembers(Handle<JSFunction> function);
 
@@ skipping 143 matching lines @@
   // Reinitialize a JSProxy into an (empty) JS object of respective type and
   // size, but keeping the original prototype.  The receiver must have at least
   // the size of the new object.  The object is reinitialized and behaves as an
   // object that has been freshly allocated.
   void ReinitializeJSProxy(Handle<JSProxy> proxy, InstanceType type, int size);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_FACTORY_H_