Manage and capture class and function instantiators in the parser.

runtime/vm/code_descriptors_test.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 "platform/assert.h"
 #include "vm/globals.h"
 
 #include "vm/ast.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 13 matching lines @@
 CODEGEN_TEST_GENERATE(StackMapCodegen, test) {
   ParsedFunction* parsed_function =
       new ParsedFunction(Thread::Current(), test->function());
   LiteralNode* l = new LiteralNode(kPos, Smi::ZoneHandle(Smi::New(1)));
   test->node_sequence()->Add(new ReturnNode(kPos, l));
   l = new LiteralNode(kPos, Smi::ZoneHandle(Smi::New(2)));
   test->node_sequence()->Add(new ReturnNode(kPos, l));
   l = new LiteralNode(kPos, Smi::ZoneHandle(Smi::New(3)));
   test->node_sequence()->Add(new ReturnNode(kPos, l));
   parsed_function->SetNodeSequence(test->node_sequence());
-  parsed_function->set_instantiator(NULL);
   parsed_function->EnsureExpressionTemp();
   test->node_sequence()->scope()->AddVariable(
       parsed_function->expression_temp_var());
   test->node_sequence()->scope()->AddVariable(
       parsed_function->current_context_var());
   parsed_function->AllocateVariables();
   bool retval;
   Isolate* isolate = Isolate::Current();
   EXPECT(isolate != NULL);
   LongJumpScope jump;
@@ skipping 268 matching lines @@
     if (token_positions[i] != it.TokenPos().value()) {
       OS::Print("[%" Pd "]: Expected: %" Pd " != %" Pd "\n", i,
                 token_positions[i], it.TokenPos().value());
     }
     EXPECT(token_positions[i] == it.TokenPos().value());
     i++;
   }
 }
 
 }  // namespace dart