Fix issue 738: make compilable with profilingsupport=off

src/stub-cache.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 1087 matching lines @@
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 Object* StubCompiler::CompileCallDebugBreak(Code::Flags flags) {
   HandleScope scope;
   Debug::GenerateCallICDebugBreak(masm());
   Object* result = GetCodeWithFlags(flags, "CompileCallDebugBreak");
   if (!result->IsFailure()) {
     Code* code = Code::cast(result);
     USE(code);
     Code::Kind kind = Code::ExtractKindFromFlags(flags);
+    USE(kind);
     PROFILE(CodeCreateEvent(CALL_LOGGER_TAG(kind, CALL_DEBUG_BREAK_TAG),
                             code, code->arguments_count()));
   }
   return result;
 }
 
 
 Object* StubCompiler::CompileCallDebugPrepareStepIn(Code::Flags flags) {
   HandleScope scope;
   // Use the same code for the the step in preparations as we do for
@@ skipping 199 matching lines @@
       expected_receiver_type_ =
           FunctionTemplateInfo::cast(signature->receiver());
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal