Fix ES5 class detection when using createClass by itself (fixes #297)

Author: yannickcr

lib/util/Components.js

@@ -116,7 +116,10 @@ function componentRule(rule, context) {
      * @returns {Boolean} True if the node is a React ES5 component, false if not
      */
     isES5Component: function(node) {
-      return node.parent && sourceCode.getText(node.parent.callee) === 'React.createClass';
+      if (!node.parent) {
+        return false;
+      }
+      return /^(React\.)?createClass$/.test(sourceCode.getText(node.parent.callee));
     },
 
     /**

tests/lib/rules/display-name.js

@@ -328,6 +328,17 @@ ruleTester.run('display-name', rule, {
       '};'
     ].join('\n'),
     parser: 'babel-eslint'
+  }, {
+    code: [
+      'import React, { createClass } from \'react\';',
+      'export default createClass({',
+      '  displayName: \'Foo\',',
+      '  render() {',
+      '    return <h1>foo</h1>;',
+      '  }',
+      '});'
+    ].join('\n'),
+    parser: 'babel-eslint'
   }
 ],