VM: Don't generate allocation stats code in product mode.

runtime/vm/class_table.cc

 // 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.
 
 #include "vm/atomic.h"
 #include "vm/class_table.h"
 #include "vm/flags.h"
 #include "vm/freelist.h"
 #include "vm/growable_array.h"
 #include "vm/heap.h"
@@ skipping 454 matching lines @@
 intptr_t ClassTable::CounterOffsetFor(intptr_t cid, bool is_new_space) {
   const intptr_t class_offset = ClassOffsetFor(cid);
   const intptr_t count_field_offset = is_new_space
       ? ClassHeapStats::allocated_since_gc_new_space_offset()
       : ClassHeapStats::allocated_since_gc_old_space_offset();
   return class_offset + count_field_offset;
 }
 
 
 intptr_t ClassTable::StateOffsetFor(intptr_t cid) {
-  return ClassOffsetFor(cid)+ ClassHeapStats::state_offset();
+  return ClassOffsetFor(cid) + ClassHeapStats::state_offset();
 }
 
 
 intptr_t ClassTable::SizeOffsetFor(intptr_t cid, bool is_new_space) {
   const uword class_offset = ClassOffsetFor(cid);
   const uword size_field_offset = is_new_space
       ? ClassHeapStats::allocated_size_since_gc_new_space_offset()
       : ClassHeapStats::allocated_size_since_gc_old_space_offset();
   return class_offset + size_field_offset;
 }
@@ skipping 63 matching lines @@
 
 void ClassTable::UpdateLiveNew(intptr_t cid, intptr_t size) {
   ClassHeapStats* stats = PreliminaryStatsAt(cid);
   ASSERT(stats != NULL);
   ASSERT(size >= 0);
   stats->post_gc.AddNew(size);
 }
 
 
 }  // namespace dart