Remove many features when building product mode

runtime/vm/trace_buffer_test.cc

 // Copyright (c) 2013, 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 "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/json_stream.h"
 #include "vm/trace_buffer.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
+#ifndef PRODUCT
+
 TEST_CASE(TraceBufferEmpty) {
   Isolate* isolate = Isolate::Current();
   TraceBuffer::Init(isolate, 3);
   TraceBuffer* trace_buffer = isolate->trace_buffer();
   {
     JSONStream js;
     trace_buffer->PrintToJSONStream(&js);
     EXPECT_STREQ("{\"type\":\"TraceBuffer\",\"members\":[]}", js.ToCString());
   }
   delete trace_buffer;
@@ skipping 73 matching lines @@
   TraceBuffer* trace_buffer = isolate->trace_buffer();
   trace_buffer->TraceF("foo %d %s", 99, "bar");
   {
     JSONStream js;
     trace_buffer->PrintToJSONStream(&js);
     EXPECT_SUBSTRING("foo 99 bar", js.ToCString());
   }
   delete trace_buffer;
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart