Bug 1550485 - Remove usage of new Function in redux.js r=nchevobbe

Differential Revision: https://phabricator.services.mozilla.com/D38514

--HG--
extra : moz-landing-system : lando

devtools/client/shared/vendor/REDUX_UPGRADING.md

@@ -29,3 +29,4 @@ cp dist/redux.js <gecko-dev>/devtools/client/shared/vendor/redux.js
    * react-redux v3.7.2
    */
   ```
+- Replace all instances of `Function('return this')()` with `globalThis`. See Bug 1473549.

devtools/client/shared/vendor/redux.js

@@ -15,7 +15,7 @@ var freeGlobal = typeof global == 'object' && global && global.Object === Object
 var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
 
 /** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
+var root = freeGlobal || freeSelf || globalThis;
 
 /** Built-in value references. */
 var Symbol = root.Symbol;