Add handling for removing propTypes from babel output code (#163)

* Added handling for removing propTypes from babel output code

So this is a third party library that ships their compiled code with propTypes, with this change it will removed.

* Renamed create-class test to react-create-class it tests that module
Added create-class test for the case covered in this change

Author: gandazgul

src/index.js

@@ -221,7 +221,10 @@ export default function(api) {
                   return false
                 }
 
-                return currentNode.get('callee').node.name === 'createReactClass'
+                return (
+                  currentNode.get('callee').node.name === 'createReactClass' ||
+                  currentNode.get('callee').node.property.name === 'createClass'
+                )
               })
 
               if (parent) {

test/fixtures/create-class/actual.js

@@ -1,8 +1,18 @@
-var createReactClass = require('create-react-class');
+var _react2 = require('react');
 var PropTypes = require('prop-types');
 
-createReactClass({
+// react >= 15.6
+var Class1 = _react2.default.createClass({
+  displayName: 'Class1',
   propTypes: {
     foo: PropTypes.string,
   },
 });
+
+// react < 15.6
+var Class2 = _react2.default.createClass({
+  displayName: 'Class2',
+  propTypes: {
+      foo: _react2.default.PropTypes.string,
+  },
+});

test/fixtures/create-class/expected-remove-es6.js

@@ -1,3 +1,11 @@
-var createReactClass = require('create-react-class');
+var _react2 = require('react');
 
-createReactClass({});
+// react >= 15.6
+var Class1 = _react2.default.createClass({
+  displayName: 'Class1'
+}); // react < 15.6
+
+
+var Class2 = _react2.default.createClass({
+  displayName: 'Class2'
+});

test/fixtures/react-create-class/actual.js

@@ -0,0 +1,8 @@
+var createReactClass = require('create-react-class');
+var PropTypes = require('prop-types');
+
+createReactClass({
+  propTypes: {
+    foo: PropTypes.string,
+  },
+});

test/fixtures/react-create-class/expected-remove-es6.js

@@ -0,0 +1,3 @@
+var createReactClass = require('create-react-class');
+
+createReactClass({});