an AST_If is too a StatementWithBody

lib/ast.js

@@ -286,16 +286,16 @@ var AST_Continue = DEFNODE("Continue", null, {
 
 /* -----[ IF ]----- */
 
-var AST_If = DEFNODE("If", "condition consequent alternative", {
+var AST_If = DEFNODE("If", "condition alternative", {
     $documentation: "A `if` statement",
     _walk: function(visitor) {
         return visitor._visit(this, function(){
             this.condition._walk(visitor);
-            this.consequent._walk(visitor);
+            this.body._walk(visitor);
             if (this.alternative) this.alternative._walk(visitor);
         });
     }
-});
+}, AST_StatementWithBody);
 
 /* -----[ SWITCH ]----- */