Shrink AOT snapshot size and memory usage.

runtime/vm/raw_object.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/raw_object.h"
 
 #include "vm/become.h"
 #include "vm/class_table.h"
 #include "vm/dart.h"
 #include "vm/freelist.h"
@@ skipping 424 matching lines @@
   return false;
 }
 
 
 intptr_t RawFunction::VisitFunctionPointers(RawFunction* raw_obj,
                                             ObjectPointerVisitor* visitor) {
   if (visitor->visit_function_code() || !CheckUsageCounter(raw_obj)) {
     visitor->VisitPointers(raw_obj->from(), raw_obj->to());
     return Function::InstanceSize();
   }
+#if defined(DART_PRECOMPILED_RUNTIME)
+  UNREACHABLE();
+#else
   visitor->VisitPointers(raw_obj->from(), raw_obj->to_no_code());
 
   if (ShouldVisitCode(raw_obj->ptr()->code_)) {
     visitor->VisitPointer(
         reinterpret_cast<RawObject**>(&raw_obj->ptr()->code_));
   } else {
     visitor->add_skipped_code_function(raw_obj);
   }
 
   if (ShouldVisitCode(raw_obj->ptr()->unoptimized_code_)) {
     visitor->VisitPointer(
         reinterpret_cast<RawObject**>(&raw_obj->ptr()->unoptimized_code_));
   } else {
     visitor->add_skipped_code_function(raw_obj);
   }
+#endif
   return Function::InstanceSize();
 }
 
 
 intptr_t RawField::VisitFieldPointers(RawField* raw_obj,
                                       ObjectPointerVisitor* visitor) {
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return Field::InstanceSize();
 }
 
@@ skipping 490 matching lines @@
 intptr_t RawUserTag::VisitUserTagPointers(
     RawUserTag* raw_obj, ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return UserTag::InstanceSize();
 }
 
 
 }  // namespace dart