Move symbol table from per isolate snapshot to vm isolate snapshot, this reduces the per isolate in…

runtime/vm/isolate.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/isolate.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "vm/code_observers.h"
@@ skipping 39 matching lines @@
 DEFINE_FLAG(bool, break_at_isolate_spawn, false,
             "Insert a one-time breakpoint at the entrypoint for all spawned "
             "isolates");
 DEFINE_FLAG(charp, isolate_log_filter, NULL,
             "Log isolates whose name include the filter. "
             "Default: service isolate log messages are suppressed.");
 
 // Quick access to the locally defined isolate() method.
 #define I (isolate())
 
-
 #if defined(DEBUG)
 // Helper class to ensure that a live origin_id is never reused
 // and assigned to an isolate.
 class VerifyOriginId : public IsolateVisitor {
  public:
   explicit VerifyOriginId(Dart_Port id) : id_(id) {}
 
   void VisitIsolate(Isolate* isolate) {
     ASSERT(isolate->origin_id() != id_);
   }
@@ skipping 293 matching lines @@
       if (message->RedirectToDeliveryFailurePort()) {
         PortMap::PostMessage(message);
       } else {
         delete message;
       }
       return true;
     }
   }
 
   // Parse the message.
-  SnapshotReader reader(message->data(), message->len(), Snapshot::kMessage,
-                        I, zone.GetZone());
+  MessageSnapshotReader reader(message->data(),
+                               message->len(),
+                               I, zone.GetZone());
   const Object& msg_obj = Object::Handle(I, reader.ReadObject());
   if (msg_obj.IsError()) {
     // An error occurred while reading the message.
     delete message;
     return ProcessUnhandledException(Error::Cast(msg_obj));
   }
   if (!msg_obj.IsNull() && !msg_obj.IsInstance()) {
     // TODO(turnidge): We need to decide what an isolate does with
     // malformed messages.  If they (eventually) come from a remote
     // machine, then it might make sense to drop the message entirely.
@@ skipping 283 matching lines @@
       stack_frame_index_(-1),
       last_allocationprofile_accumulator_reset_timestamp_(0),
       last_allocationprofile_gc_timestamp_(0),
       object_id_ring_(NULL),
       trace_buffer_(NULL),
       profiler_data_(NULL),
       thread_state_(NULL),
       tag_table_(GrowableObjectArray::null()),
       current_tag_(UserTag::null()),
       default_tag_(UserTag::null()),
+      deoptimized_code_array_(GrowableObjectArray::null()),
       metrics_list_head_(NULL),
       cha_(NULL),
       next_(NULL),
       pause_loop_monitor_(NULL),
       REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_INITIALIZERS)
       REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_SCOPE_INIT)
       reusable_handles_() {
 }
 #undef REUSABLE_HANDLE_SCOPE_INIT
 #undef REUSABLE_HANDLE_INITIALIZERS
@@ skipping 1168 matching lines @@
 }
 
 
 static RawInstance* DeserializeObject(Isolate* isolate,
                                       Zone* zone,
                                       uint8_t* obj_data,
                                       intptr_t obj_len) {
   if (obj_data == NULL) {
     return Instance::null();
   }
-  SnapshotReader reader(obj_data, obj_len, Snapshot::kMessage, isolate, zone);
+  MessageSnapshotReader reader(obj_data,
+                               obj_len,
+                               isolate,
+                               zone);
   const Object& obj = Object::Handle(isolate, reader.ReadObject());
   ASSERT(!obj.IsError());
   Instance& instance = Instance::Handle(isolate);
   instance ^= obj.raw();  // Can't use Instance::Cast because may be null.
   return instance.raw();
 }
 
 
 IsolateSpawnState::IsolateSpawnState(Dart_Port parent_port,
                                      const Function& func,
@@ skipping 156 matching lines @@
                            serialized_message_, serialized_message_len_);
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(I);
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart