Remove many features when building product mode

runtime/vm/flag_list.h

 // 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.
 
 #ifndef VM_FLAG_LIST_H_
 #define VM_FLAG_LIST_H_
 
 // List of all flags in the VM.
 // Flags can be one of three categories:
 // * P roduct flags: Can be set in any of the deployment modes, including in
 //   production.
 // * D ebug flags: Can only be set in debug VMs, which also have assertions
 //   enabled.
 // * R elease flags: Generally available flags except when building product.
 
 #define FLAG_LIST(P, R, D) \
 R(disassemble, false, bool, false, "Disassemble dart code.")                   \
 R(disassemble_optimized, false, bool, false, "Disassemble optimized code.")    \
 R(dump_symbol_stats, false, bool, false, "Dump symbol table statistics")       \
 R(pretenure_all, false, bool, false, "Global pretenuring (for testing).")      \
 D(trace_handles, bool, false, "Traces allocation of handles.")                 \
 D(trace_zones, bool, false, "Traces allocation sizes in the zone.")            \
 P(verbose_gc, bool, false, "Enables verbose GC.")                              \
+R(support_debugger, false, bool, true, "Support the debugger.")                \
+R(support_service, false, bool, true, "Support the service protocol.")         \
+R(support_coverage, false, bool, true, "Support code coverage.")               \
+R(support_timeline, false, bool, true, "Support timeline.")                    \
 
 #endif  // VM_FLAG_LIST_H_