Revert "Add typedef AST node boilerplate."

runtime/vm/kernel.h

Index: runtime/vm/kernel.h
diff --git a/runtime/vm/kernel.h b/runtime/vm/kernel.h
index 1ebd8f0ad5cc1e08e9cce072a5bf167d785d9444..8913cab1616b6b35aa27cf7fff59e7f2857ac361 100644
--- a/runtime/vm/kernel.h
+++ b/runtime/vm/kernel.h
@@ -22,12 +22,10 @@
   M(InterfaceType)                                                             \
   M(FunctionType)                                                              \
   M(TypeParameterType)                                                         \
-  M(VectorType)                                                                \
-  M(TypedefType)
+  M(VectorType)
 
 #define KERNEL_TREE_NODES_DO(M)                                                \
   M(Library)                                                                   \
-  M(Typedef)                                                                   \
   M(Class)                                                                     \
   M(NormalClass)                                                               \
   M(MixinClass)                                                                \
@@ -377,7 +375,6 @@ KERNEL_VISITORS_DO(DO)
   DEFINE_IS_OPERATION(TreeNode)                                                \
   KERNEL_TREE_NODES_DO(DEFINE_IS_OPERATION)
 
-class Typedef;
 class Class;
 class Constructor;
 class Field;
@@ -491,7 +488,6 @@ class Library : public LinkedNode {
   String* import_uri() { return import_uri_; }
   intptr_t source_uri_index() { return source_uri_index_; }
   String* name() { return name_; }
-  List<Typedef>& typedefs() { return typedefs_; }
   List<Class>& classes() { return classes_; }
   List<Field>& fields() { return fields_; }
   List<Procedure>& procedures() { return procedures_; }
@@ -508,7 +504,6 @@ class Library : public LinkedNode {
   Ref<String> name_;
   Ref<String> import_uri_;
   intptr_t source_uri_index_;
-  List<Typedef> typedefs_;
   List<Class> classes_;
   List<Field> fields_;
   List<Procedure> procedures_;
@@ -519,40 +514,6 @@ class Library : public LinkedNode {
 };
 
 
-class Typedef : public LinkedNode {
- public:
-  Typedef* ReadFrom(Reader* reader);
-
-  virtual ~Typedef();
-
-  DEFINE_CASTING_OPERATIONS(Typedef);
-
-  virtual void AcceptTreeVisitor(TreeVisitor* visitor);
-  virtual void VisitChildren(Visitor* visitor);
-
-  Library* parent() { return parent_; }
-  String* name() { return name_; }
-  intptr_t source_uri_index() { return source_uri_index_; }
-  TokenPosition position() { return position_; }
-  TypeParameterList& type_parameters() { return type_parameters_; }
-  DartType* type() { return type_; }
-
- protected:
-  Typedef() : position_(TokenPosition::kNoSource) {}
-
- private:
-  template <typename T>
-  friend class List;
-
-  Ref<Library> parent_;
-  Ref<String> name_;
-  intptr_t source_uri_index_;
-  TokenPosition position_;
-  TypeParameterList type_parameters_;
-  Child<DartType> type_;
-};
-
-
 class Class : public LinkedNode {
  public:
   Class* ReadFrom(Reader* reader);
@@ -2794,32 +2755,6 @@ class InterfaceType : public DartType {
 };
 
 
-class TypedefType : public DartType {
- public:
-  static TypedefType* ReadFrom(Reader* reader);
-
-  explicit TypedefType(CanonicalName* class_reference)
-      : typedef_reference_(class_reference) {}
-  virtual ~TypedefType();
-
-  DEFINE_CASTING_OPERATIONS(TypedefType);
-
-  virtual void AcceptDartTypeVisitor(DartTypeVisitor* visitor);
-  virtual void VisitChildren(Visitor* visitor);
-
-  CanonicalName* typedef_reference() { return typedef_reference_; }
-  List<DartType>& type_arguments() { return type_arguments_; }
-
- private:
-  TypedefType() {}
-
-  Ref<CanonicalName> typedef_reference_;  // Typedef.
-  List<DartType> type_arguments_;
-
-  DISALLOW_COPY_AND_ASSIGN(TypedefType);
-};
-
-
 class FunctionType : public DartType {
  public:
   static FunctionType* ReadFrom(Reader* reader);
@@ -2964,8 +2899,6 @@ class Reference : public AllStatic {
 
   static CanonicalName* ReadClassFrom(Reader* reader, bool allow_null = false);
 
-  static CanonicalName* ReadTypedefFrom(Reader* reader);
-
   static String* ReadStringFrom(Reader* reader);
 };
 
@@ -3215,9 +3148,6 @@ class DartTypeVisitor {
     VisitDefaultDartType(node);
   }
   virtual void VisitVectorType(VectorType* node) { VisitDefaultDartType(node); }
-  virtual void VisitTypedefType(TypedefType* node) {
-    VisitDefaultDartType(node);
-  }
 };
 
 
@@ -3257,7 +3187,6 @@ class TreeVisitor : public ExpressionVisitor,
   virtual void VisitCatch(Catch* node) { VisitDefaultTreeNode(node); }
   virtual void VisitMapEntry(MapEntry* node) { VisitDefaultTreeNode(node); }
   virtual void VisitProgram(Program* node) { VisitDefaultTreeNode(node); }
-  virtual void VisitTypedef(Typedef* node) { VisitDefaultTreeNode(node); }
 };