Activate the service isolate for all precompiled tests.

runtime/vm/precompiler.cc

 // Copyright (c) 2015, 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 "vm/precompiler.h"
 
 #include "vm/aot_optimizer.h"
 #include "vm/assembler.h"
 #include "vm/ast_printer.h"
 #include "vm/branch_optimizer.h"
@@ skipping 390 matching lines @@
     { "dart:isolate", "::", "_getIsolateScheduleImmediateClosure" },
     { "dart:isolate", "::", "_setupHooks" },
     { "dart:isolate", "::", "_startMainIsolate" },
     { "dart:isolate", "::", "_startIsolate" },
     { "dart:isolate", "_RawReceivePortImpl", "_handleMessage" },
     { "dart:isolate", "_RawReceivePortImpl", "_lookupHandler" },
     { "dart:isolate", "_SendPortImpl", "send" },
     { "dart:typed_data", "ByteData", "ByteData." },
     { "dart:typed_data", "ByteData", "ByteData._view" },
     { "dart:typed_data", "ByteBuffer", "ByteBuffer._New" },
-#if !defined(PRODUCT)
     { "dart:_vmservice", "::", "_registerIsolate" },
     { "dart:_vmservice", "::", "boot" },
+#if !defined(PRODUCT)
     { "dart:developer", "Metrics", "_printMetrics" },
     { "dart:developer", "::", "_runExtension" },
     { "dart:isolate", "::", "_runPendingImmediateCallback" },
 #endif  // !PRODUCT
     // Fields
     { "dart:core", "Error", "_stackTrace" },
     { "dart:math", "_Random", "_state" },
     { NULL, NULL, NULL }  // Must be terminated with NULL entries.
   };
 
@@ skipping 2424 matching lines @@
       CompilationPipeline::New(thread->zone(), function);
 
   ASSERT(FLAG_precompiled_mode);
   const bool optimized = function.IsOptimizable();  // False for natives.
   return PrecompileFunctionHelper(pipeline, function, optimized);
 }
 
 #endif  // DART_PRECOMPILER
 
 }  // namespace dart