Split nested namespaces declaration in two lines in accordance with C++ Style Guide.

src/ic.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 17 matching lines @@
 #include "v8.h"
 
 #include "accessors.h"
 #include "api.h"
 #include "arguments.h"
 #include "execution.h"
 #include "ic-inl.h"
 #include "runtime.h"
 #include "stub-cache.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 #ifdef DEBUG
 static char TransitionMarkFromState(IC::State state) {
   switch (state) {
     case UNINITIALIZED: return '0';
     case UNINITIALIZED_IN_LOOP: return 'L';
     case PREMONOMORPHIC: return 'P';
     case MONOMORPHIC: return '1';
     case MONOMORPHIC_PROTOTYPE_FAILURE: return '^';
     case MEGAMORPHIC: return 'N';
@@ skipping 1189 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal