Migrate to import * as React from 'react'

Ref facebook/react#18102

Author: TrySound

packages/material-ui/src/AppBar/AppBar.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';
 import withStyles from '../styles/withStyles';

packages/material-ui/src/AppBar/AppBar.test.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { assert } from 'chai';
 import { createMount, createShallow, getClasses } from '@material-ui/core/test-utils';
 import describeConformance from '../test-utils/describeConformance';

packages/material-ui/src/Avatar/Avatar.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';
 import withStyles from '../styles/withStyles';

packages/material-ui/src/Avatar/Avatar.test.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { assert } from 'chai';
 import CancelIcon from '../internal/svg-icons/Cancel';
 import { createMount, createShallow, getClasses } from '@material-ui/core/test-utils';

packages/material-ui/src/Backdrop/Backdrop.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';
 import withStyles from '../styles/withStyles';

packages/material-ui/src/Backdrop/Backdrop.test.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { assert } from 'chai';
 import { createMount, getClasses } from '@material-ui/core/test-utils';
 import describeConformance from '../test-utils/describeConformance';

packages/material-ui/src/Badge/Badge.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';
 import withStyles from '../styles/withStyles';

packages/material-ui/src/Badge/Badge.test.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { assert } from 'chai';
 import { createMount, getClasses } from '@material-ui/core/test-utils';
 import describeConformance from '../test-utils/describeConformance';

packages/material-ui/src/BottomNavigation/BottomNavigation.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { isFragment } from 'react-is';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';

packages/material-ui/src/BottomNavigation/BottomNavigation.test.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import { assert } from 'chai';
 import { spy } from 'sinon';
 import { createShallow, createMount, getClasses } from '@material-ui/core/test-utils';