1 files changed, 11 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/number/is-number.js b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/number/is-number.js
new file mode 100644
index 0000000000..19a99e4f19
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/number/is-number.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var toString = Object.prototype.toString
+
+  , id = toString.call(1);
+
+module.exports = function (x) {
+	return ((typeof x === 'number') ||
+		((x instanceof Number) ||
+			((typeof x === 'object') && (toString.call(x) === id))));
+};