Implement closurization of regular methods in ObjectMirror.getField in the VM.

runtime/vm/flow_graph_builder.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/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/code_descriptors.h"
@@ skipping 2011 matching lines @@
     }
     ReturnDefinition(ExitTempLocalScope(tmp_var));
   }
 }
 
 
 void EffectGraphVisitor::VisitClosureNode(ClosureNode* node) {
   const Function& function = node->function();
 
   if (function.IsImplicitStaticClosureFunction()) {
-    Instance& closure = Instance::ZoneHandle();
-    closure ^= function.implicit_static_closure();
-    if (closure.IsNull()) {
-      ObjectStore* object_store = Isolate::Current()->object_store();
-      const Context& context = Context::Handle(object_store->empty_context());
-      closure ^= Closure::New(function, context, Heap::kOld);
-      function.set_implicit_static_closure(closure);
-    }
+    const Instance& closure =
+        Instance::ZoneHandle(function.ImplicitStaticClosure());
     ReturnDefinition(new ConstantInstr(closure));
     return;
   }
   if (function.IsNonImplicitClosureFunction()) {
     // The context scope may have already been set by the non-optimizing
     // compiler.  If it was not, set it here.
     if (function.context_scope() == ContextScope::null()) {
       // TODO(regis): Why are we not doing this in the parser?
       const ContextScope& context_scope = ContextScope::ZoneHandle(
           node->scope()->PreserveOuterScope(owner()->context_level()));
@@ skipping 1776 matching lines @@
   intptr_t len = OS::SNPrint(NULL, 0, kFormat, function_name, reason) + 1;
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
   OS::SNPrint(chars, len, kFormat, function_name, reason);
   const Error& error = Error::Handle(
       LanguageError::New(String::Handle(String::New(chars))));
   Isolate::Current()->long_jump_base()->Jump(1, error);
 }
 
 
 }  // namespace dart