1 files changed, 10 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/string/is-string.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/string/is-string.js
new file mode 100644
index 0000000000..719aeec16c
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/string/is-string.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var toString = Object.prototype.toString
+
+  , id = toString.call('');
+
+module.exports = function (x) {
+	return (typeof x === 'string') || (x && (typeof x === 'object') &&
+		((x instanceof String) || (toString.call(x) === id))) || false;
+};