Remove many features when building product mode

runtime/vm/coverage_test.cc

 // Copyright (c) 2014, 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/coverage.h"
 #include "vm/dart_api_impl.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
+#ifndef PRODUCT
+
 static RawObject* ExecuteScript(const char* script) {
   TransitionVMToNative transition(Thread::Current());
   Dart_Handle h_lib = TestCase::LoadTestScript(script, NULL);
   EXPECT_VALID(h_lib);
   Library& lib = Library::Handle();
   lib ^= Api::UnwrapHandle(h_lib);
   EXPECT(!lib.IsNull());
   Dart_Handle result = Dart_Invoke(h_lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);
   return Api::UnwrapHandle(h_lib);
@@ skipping 109 matching lines @@
   // Only expect coverage data for Foo.yetAnother() on line 6.
   char buf[1024];
   OS::SNPrint(buf, sizeof(buf),
       "{\"source\":\"test-lib\",\"script\":{\"type\":\"@Script\","
       "\"fixedId\":true,\"id\":\"libraries\\/%" Pd "\\/scripts\\/test-lib\","
       "\"uri\":\"test-lib\","
       "\"_kind\":\"script\"},\"hits\":[6,0]}", lib.index());
   EXPECT_SUBSTRING(buf, js.ToCString());
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart