VM: Refactor more intrinsics of GrowableList to use IR builder.

runtime/vm/raw_object_snapshot.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/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/visitor.h"
@@ skipping 1348 matching lines @@
 
 
 RawContext* Context::ReadFrom(SnapshotReader* reader,
                               intptr_t object_id,
                               intptr_t tags,
                               Snapshot::Kind kind) {
   ASSERT(reader != NULL);
 
   // Allocate context object.
   int32_t num_vars = reader->Read<int32_t>();
-  Context& context = Context::ZoneHandle(reader->isolate(), Context::null());
-  if (kind == Snapshot::kFull) {
-    context = reader->NewContext(num_vars);
-  } else {
-    context = Context::New(num_vars, HEAP_SPACE(kind));
-  }
+  Context& context = Context::ZoneHandle(
+      reader->isolate(), NEW_OBJECT_WITH_LEN(Context, num_vars));
   reader->AddBackRef(object_id, &context, kIsDeserialized);
 
   // Set the object tags.
   context.set_tags(tags);
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (context.raw()->to(num_vars) - context.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
@@ skipping 14 matching lines @@
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteVMIsolateObject(kContextCid);
   writer->WriteTags(writer->GetObjectTags(this));
 
   // Write out num of variables in the context.
   writer->Write<int32_t>(ptr()->num_variables_);
 
-  // Can't serialize the isolate pointer, we set it implicitly on read.
-
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to(ptr()->num_variables_));
 }
 
 
 RawContextScope* ContextScope::ReadFrom(SnapshotReader* reader,
                                         intptr_t object_id,
                                         intptr_t tags,
                                         Snapshot::Kind kind) {
@@ skipping 1480 matching lines @@
     // We do not allow objects with native fields in an isolate message.
     writer->SetWriteException(Exceptions::kArgument,
                               "Illegal argument in isolate message"
                               " : (object is a UserTag)");
   } else {
     UNREACHABLE();
   }
 }
 
 }  // namespace dart