Handle type literals correctly with deferred loading and await.

runtime/vm/ast.h

 // 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.
 
 #ifndef RUNTIME_VM_AST_H_
 #define RUNTIME_VM_AST_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
@@ skipping 425 matching lines @@
 
  private:
   const Instance& literal_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(LiteralNode);
 };
 
 
 class TypeNode : public AstNode {
  public:
-  TypeNode(TokenPosition token_pos, const AbstractType& type)
-      : AstNode(token_pos), type_(type) {
+  TypeNode(TokenPosition token_pos,
+           const AbstractType& type,
+           bool is_deferred_reference = false)
+      : AstNode(token_pos),
+        type_(type),
+        is_deferred_reference_(is_deferred_reference) {
     ASSERT(type_.IsZoneHandle());
     ASSERT(!type_.IsNull());
     ASSERT(type_.IsFinalized());
     // A wellformed literal Type must be canonical.
     ASSERT(!type_.IsType() || type_.IsMalformedOrMalbounded() ||
            type_.IsCanonical());
   }
 
   const AbstractType& type() const { return type_; }
 
   const char* TypeName() const;
 
   virtual const Instance* EvalConstExpr() const {
     if (!type_.IsInstantiated() || type_.IsMalformedOrMalbounded()) {
       return NULL;
     }
     return &type();
   }
 
   virtual void VisitChildren(AstNodeVisitor* visitor) const {}
 
+  bool is_deferred_reference() const { return is_deferred_reference_; }
+  void set_is_deferred_reference(bool value) { is_deferred_reference_ = value; }
+
   DECLARE_COMMON_NODE_FUNCTIONS(TypeNode);
 
  private:
   const AbstractType& type_;
+  bool is_deferred_reference_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(TypeNode);
 };
 
 
 class AssignableNode : public AstNode {
  public:
   AssignableNode(TokenPosition token_pos,
                  AstNode* expr,
                  const AbstractType& type,
@@ skipping 1483 matching lines @@
   const intptr_t try_index_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode);
 };
 
 }  // namespace dart
 
 #undef DECLARE_COMMON_NODE_FUNCTIONS
 
 #endif  // RUNTIME_VM_AST_H_