prevent possible RegExp#exec problems in some old engines, close #920

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## Changelog
 ##### Unreleased
 - [`Array` find from last proposal](https://github.com/tc39/proposal-array-find-from-last) moved to the stage 2, [March TC39 meeting](https://github.com/babel/proposals/issues/71#issuecomment-795916535)
+- Prevented possible `RegExp#exec` problems in some old engines, [#920](https://github.com/zloirock/core-js/issues/920)
 - Updated Samsung Internet compat data mapping to 14.0
 
 ##### 3.9.1 - 2021.03.01

packages/core-js/internals/regexp-exec.js

@@ -1,12 +1,13 @@
 'use strict';
 var regexpFlags = require('./regexp-flags');
 var stickyHelpers = require('./regexp-sticky-helpers');
+var shared = require('./shared');
 
 var nativeExec = RegExp.prototype.exec;
 // This always refers to the native implementation, because the
 // String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
 // which loads this file before patching the method.
-var nativeReplace = String.prototype.replace;
+var nativeReplace = shared('native-string-replace', String.prototype.replace);
 
 var patchedExec = nativeExec;