[cleanup] remove PropertyName from js_ast

lib/src/js/template.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.
 
 part of js_ast;
 
 class TemplateManager {
   Map<String, Template> expressionTemplates = new Map<String, Template>();
   Map<String, Template> statementTemplates = new Map<String, Template>();
 
@@ skipping 256 matching lines @@
       Method toMethod(item) {
         if (item is Method) return item;
         return error('Interpolated value #$nameOrPosition is not a Method '
             'or List of Methods: $value');
       }
       if (value is Iterable) return value.map(toMethod);
       return toMethod(value);
     };
   }
 
-  Instantiator visitInterpolatedPropertyName(InterpolatedPropertyName node) {
-    var nameOrPosition = node.nameOrPosition;
-    return (arguments) {
-      var item = arguments[nameOrPosition];
-      if (item is PropertyName) return item;
-      if (item is String) return new PropertyName(item);
-      return error('Interpolated value #$nameOrPosition is not a '
-          'PropertyName or String: $item');
-    };
-  }
-
   Instantiator visitInterpolatedVariableDeclaration(
         InterpolatedVariableDeclaration node) {
     var nameOrPosition = node.nameOrPosition;
     return (arguments) {
       var item = arguments[nameOrPosition];
       if (item is VariableDeclaration) return item;
       if (item is String) return new VariableDeclaration(item);
       return error('Interpolated value #$nameOrPosition is not a '
           'VariableDeclaration or String: $item');
     };
@@ skipping 447 matching lines @@
   }
 
   Instantiator visitProperty(Property node) {
     Instantiator makeName = visit(node.name);
     Instantiator makeValue = visit(node.value);
     return (arguments) {
       return new Property(makeName(arguments), makeValue(arguments));
     };
   }
 
-  Instantiator visitPropertyName(PropertyName node) =>
-      (arguments) => new PropertyName(node.name);
-
   Instantiator visitRegExpLiteral(RegExpLiteral node) =>
       (arguments) => new RegExpLiteral(node.pattern);
 
   Instantiator visitTemplateString(TemplateString node) {
     Iterable makeElements =
         node.elements.map((e) => e is String ? e : visit(e));
     return (arguments) {
       return new TemplateString(makeElements
           .map((m) => m is String ? m : m(arguments))
           .toList(growable: false));
@@ skipping 91 matching lines @@
     if (count != before) containsInterpolatedNode.add(node);
     return null;
   }
 
   visitInterpolatedNode(InterpolatedNode node) {
     containsInterpolatedNode.add(node);
     if (node.isNamed) holeNames.add(node.nameOrPosition);
     ++count;
   }
 }