Remove many features when building product mode

runtime/vm/debugger_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 "vm/dart_api_impl.h"
 #include "vm/debugger.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
+#ifndef PRODUCT
+
 // Search for the formatted string in buffer.
 //
 // TODO(turnidge): This function obscures the line number of failing
 // EXPECTs.  Rework this.
 static void ExpectSubstringF(const char* buff, const char* fmt, ...) {
   va_list args;
   va_start(args, fmt);
   intptr_t len = OS::VSNPrint(NULL, 0, fmt, args);
   va_end(args);
 
@@ skipping 107 matching lines @@
   // Set a breakpoint and run.
   debugger->SetBreakpointAtLine(url, 2);
   Dart_Handle result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);
   EXPECT(Dart_IsString(result));
 
   // We ran the code in InspectPausedEvent.
   EXPECT(saw_paused_event);
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart