glayzzle#62 make use nodes consistent with other by avoiding identifier node usage

Author: ichiriac

src/ast/namespace.js

@@ -12,7 +12,7 @@ var KIND = 'namespace';
  * The main program node
  * @constructor Namespace
  * @extends {Block}
- * @property {Identifier} name
+ * @property {String} name
  * @property {Boolean} withBrackets
  */
 var Namespace = Block.extends(function Namespace(name, children, withBrackets, location) {

src/ast/usegroup.js

@@ -11,7 +11,7 @@ var KIND = 'usegroup';
  * Defines a use statement (with a list of use items)
  * @constructor UseGroup
  * @extends {Statement}
- * @property {Identifier|null} name
+ * @property {String|null} name
  * @property {String|null} type - Possible value : function, const
  * @property {UseItem[]} item
  * @see {Namespace}

src/ast/useitem.js

@@ -11,7 +11,7 @@ var KIND = 'useitem';
  * Defines a use statement (from namespace)
  * @constructor UseItem
  * @extends {Statement}
- * @property {Identifier} name
+ * @property {String} name
  * @property {String|null} type - Possible value : function, const
  * @property {String|null} alias
  * @see {Namespace}

src/parser/namespace.js

@@ -97,7 +97,7 @@ module.exports = {
     if (this.token === ',') {
       items = items.concat(this.next().read_use_declarations(false));
     } else if (this.token === '{') {
-      name = items[0].name;
+      name = items[0].name.name;
       items = this.next().read_use_declarations(type === null);
       this.expect('}') && this.next();
     }
@@ -117,7 +117,7 @@ module.exports = {
     if (typed) type = this.read_use_type();
     var name = this.read_namespace_name();
     var alias = this.read_use_alias();
-    return result(name, alias, type);
+    return result(name.name, alias, type);
   }
   /**
   * Reads a list of use declarations