Always include debugger support.

src/compiler.h

 // Copyright 2012 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 606 matching lines @@
  public:
   MUST_USE_RESULT static MaybeHandle<Code> GetUnoptimizedCode(
       Handle<JSFunction> function);
   MUST_USE_RESULT static MaybeHandle<Code> GetUnoptimizedCode(
       Handle<SharedFunctionInfo> shared);
   static bool EnsureCompiled(Handle<JSFunction> function,
                              ClearExceptionFlag flag);
   MUST_USE_RESULT static MaybeHandle<Code> GetCodeForDebugging(
       Handle<JSFunction> function);
 
-#ifdef ENABLE_DEBUGGER_SUPPORT
   static void CompileForLiveEdit(Handle<Script> script);
-#endif
 
   // Compile a String source within a context for eval.
   MUST_USE_RESULT static MaybeHandle<JSFunction> GetFunctionFromEval(
       Handle<String> source,
       Handle<Context> context,
       StrictMode strict_mode,
       ParseRestriction restriction,
       int scope_position);
 
   // Compile a String source within a context.
@@ skipping 54 matching lines @@
   unsigned info_zone_start_allocation_size_;
   ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_