From db27db36e23187967336676b26b1a6fa74d85eec Mon Sep 17 00:00:00 2001
From: Rich-Harris <richard.a.harris@gmail.com>
Date: Sat, 19 Sep 2015 23:00:12 +0200
Subject: [PATCH] add mark method to base Identifier class (makes project
 buildable)

---
 src/Scope.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Scope.js b/src/Scope.js
index 1c04fae..d1ab083 100644
--- a/src/Scope.js
+++ b/src/Scope.js
@@ -2,8 +2,14 @@ import { blank, keys } from './utils/object';
 
 // A minimal `Identifier` implementation. Anything that has an `originalName`,
 // and a mutable `name` property can be used as an `Identifier`.
-function Identifier ( name ) {
-	this.originalName = this.name = name;
+class Identifier {
+	constructor ( name ) {
+		this.originalName = this.name = name;
+	}
+
+	mark () {
+		// noop
+	}
 }
 
 // A reference to an `Identifier`.