Correct a misnomer regarding supplementary code points.

runtime/vm/symbols.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/symbols.h"
 
 #include "vm/isolate.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/raw_object.h"
@@ skipping 94 matching lines @@
   intptr_t len = Utf8::CodePointCount(utf8_array, str_len, &type);
   Zone* zone = Isolate::Current()->current_zone();
   if (len == 0) {
     return Symbols::New(reinterpret_cast<uint8_t*>(NULL), 0);
   }
   if (type == Utf8::kLatin1) {
     uint8_t* characters = zone->Alloc<uint8_t>(len);
     Utf8::DecodeToLatin1(utf8_array, str_len, characters, len);
     return New(characters, len);
   }
-  ASSERT((type == Utf8::kBMP) || (type == Utf8::kSMP));
+  ASSERT((type == Utf8::kBMP) || (type == Utf8::kSupplementary));
   uint16_t* characters = zone->Alloc<uint16_t>(len);
   Utf8::DecodeToUTF16(utf8_array, str_len, characters, len);
   return New(characters, len);
 }
 
 
 template<typename T>
 RawString* Symbols::New(const T* characters, intptr_t len) {
   Isolate* isolate = Isolate::Current();
   String& symbol = String::Handle(isolate, String::null());
@@ skipping 197 matching lines @@
 }
 
 
 RawObject* Symbols::GetVMSymbol(intptr_t object_id) {
   ASSERT(IsVMSymbolId(object_id));
   intptr_t i = (object_id - kMaxPredefinedObjectIds);
   return (i > 0 && i < Symbols::kMaxId) ? predefined_[i] : Object::null();
 }
 
 }  // namespace dart