Revert "Move precompilation-related flags to flags list."

runtime/vm/debugger_api_impl_test.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 "include/dart_mirrors_api.h"
 #include "include/dart_tools_api.h"
 #include "platform/assert.h"
 #include "vm/dart_api_impl.h"
 #include "vm/lockers.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
+DECLARE_FLAG(bool, background_compilation);
+DECLARE_FLAG(int, optimization_counter_threshold);
+DECLARE_FLAG(bool, use_osr);
 DECLARE_FLAG(bool, trace_shutdown);
 
 #ifndef PRODUCT
 
 static bool breakpoint_hit = false;
 static int  breakpoint_hit_counter = 0;
 static Dart_Handle script_lib = NULL;
 
 static const bool verbose = true;
 
@@ skipping 2306 matching lines @@
       " null, 5, 17, 5, 18, 9, 19, 12,"
       " null, 6, 21, 1,"
       " null, 8, 24, 1, 25, 5, 26, 6, 27, 8,"
       " null, 9, 29, 1]",
       tokens_cstr);
 }
 
 #endif
 
 }  // namespace dart