Introduce the interface NamedType as a replacement for TypeName

pkg/analyzer/lib/dart/ast/ast.dart

 // Copyright (c) 2014, 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.
 
 /**
  * Defines the AST model. The AST (Abstract Syntax Tree) model describes the
  * syntactic (as opposed to semantic) structure of Dart code. The semantic
  * structure of the code is modeled by the
  * [element model](../element/element.dart).
  *
@@ skipping 5034 matching lines @@
    */
   Label get name;
 
   /**
    * Set the name associated with the expression to the given [identifier].
    */
   void set name(Label identifier);
 }
 
 /**
+ * A named type, which can optionally include type arguments.
+ *
+ *    namedType ::=
+ *        [Identifier] typeArguments?
+ *
+ * Clients may not extend, implement or mix-in this class.
+ */
+abstract class NamedType extends TypeAnnotation {
+  /**
+   * Return `true` if this type is a deferred type.
+   *
+   * 15.1 Static Types: A type <i>T</i> is deferred iff it is of the form
+   * </i>p.T</i> where <i>p</i> is a deferred prefix.
+   */
+  bool get isDeferred;
+
+  /**
+   * Return the name of the type.
+   */
+  Identifier get name;
+
+  /**
+   * Set the name of the type to the given [identifier].
+   */
+  void set name(Identifier identifier);
+
+  /**
+   * Return the question mark marking this as a nullable type, or `null` if
+   * the type is non-nullable.
+   */
+  Token get question;
+
+  /**
+   * Return the question mark marking this as a nullable type to the given
+   * [question].
+   */
+  void set question(Token question);
+
+  /**
+   * Set the type being named to the given [type].
+   */
+  void set type(DartType type);
+
+  /**
+   * Return the type arguments associated with the type, or `null` if there are
+   * no type arguments.
+   */
+  TypeArgumentList get typeArguments;
+
+  /**
+   * Set the type arguments associated with the type to the given
+   * [typeArguments].
+   */
+  void set typeArguments(TypeArgumentList typeArguments);
+}
+
+/**
  * A node that represents a directive that impacts the namespace of a library.
  *
  *    directive ::=
  *        [ExportDirective]
  *      | [ImportDirective]
  *
  * Clients may not extend, implement or mix-in this class.
  */
 abstract class NamespaceDirective extends UriBasedDirective {
   /**
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   /**
    * Return the 'yield' keyword.
    */
   Token get yieldKeyword;
 
   /**
    * Return the 'yield' keyword to the given [token].
    */
   void set yieldKeyword(Token token);
 }