Split @babel/runtime into two separate runtime modules.

packages/babel-runtime-corejs2/helpers/toArray.js

@@ -0,0 +1,11 @@
+var arrayWithHoles = require("./arrayWithHoles");
+
+var iterableToArray = require("./iterableToArray");
+
+var nonIterableRest = require("./nonIterableRest");
+
+function _toArray(arr) {
+  return arrayWithHoles(arr) || iterableToArray(arr) || nonIterableRest();
+}
+
+module.exports = _toArray;