Split @babel/runtime into two separate runtime modules.

packages/babel-runtime-corejs2/helpers/esm/iterableToArray.js

@@ -0,0 +1,5 @@
+import _Array$from from "../../core-js/array/from";
+import _isIterable from "../../core-js/is-iterable";
+export default function _iterableToArray(iter) {
+  if (_isIterable(Object(iter)) || Object.prototype.toString.call(iter) === "[object Arguments]") return _Array$from(iter);
+}

packages/babel-runtime-corejs2/helpers/esm/temporalRef.js

@@ -0,0 +1,8 @@
+import undef from "./temporalUndefined";
+export default function _temporalRef(val, name) {
+  if (val === undef) {
+    throw new ReferenceError(name + " is not defined - temporal dead zone");
+  } else {
+    return val;
+  }
+}

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

@@ -0,0 +1,6 @@
+import arrayWithHoles from "./arrayWithHoles";
+import iterableToArray from "./iterableToArray";
+import nonIterableRest from "./nonIterableRest";
+export default function _toArray(arr) {
+  return arrayWithHoles(arr) || iterableToArray(arr) || nonIterableRest();
+}

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

@@ -0,0 +1,9 @@
+var _Array$from = require("../core-js/array/from");
+
+var _isIterable = require("../core-js/is-iterable");
+
+function _iterableToArray(iter) {
+  if (_isIterable(Object(iter)) || Object.prototype.toString.call(iter) === "[object Arguments]") return _Array$from(iter);
+}
+
+module.exports = _iterableToArray;

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

@@ -0,0 +1,11 @@
+var temporalUndefined = require("./temporalUndefined");
+
+function _temporalRef(val, name) {
+  if (val === temporalUndefined) {
+    throw new ReferenceError(name + " is not defined - temporal dead zone");
+  } else {
+    return val;
+  }
+}
+
+module.exports = _temporalRef;

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;