+++ /dev/null
-var coreJsData = require('./_coreJsData');
-
-/** Used to detect methods masquerading as native. */
-var maskSrcKey = (function() {
- var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
- return uid ? ('Symbol(src)_1.' + uid) : '';
-}());
-
-/**
- * Checks if `func` has its source masked.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` is masked, else `false`.
- */
-function isMasked(func) {
- return !!maskSrcKey && (maskSrcKey in func);
-}
-
-module.exports = isMasked;