1 files changed, 8 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es6-set/valid-set.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es6-set/valid-set.js
new file mode 100644
index 0000000000..9336fd355a
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es6-set/valid-set.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var isSet = require('./is-set');
+
+module.exports = function (x) {
+	if (!isSet(x)) throw new TypeError(x + " is not a Set");
+	return x;
+};