Remove spurious 'const' that upsets some versions of gcc.

src/ic.cc

 // Copyright 2006-2009 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 21 matching lines @@
 #include "arguments.h"
 #include "execution.h"
 #include "ic-inl.h"
 #include "runtime.h"
 #include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 #ifdef DEBUG
-static const char TransitionMarkFromState(IC::State state) {
+static char TransitionMarkFromState(IC::State state) {
   switch (state) {
     case UNINITIALIZED: return '0';
     case PREMONOMORPHIC: return 'P';
     case MONOMORPHIC: return '1';
     case MONOMORPHIC_PROTOTYPE_FAILURE: return '^';
     case MEGAMORPHIC: return 'N';
 
     // We never see the debugger states here, because the state is
     // computed from the original code - not the patched code. Let
     // these cases fall through to the unreachable code below.
@@ skipping 1204 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal