Support JSXFragment (#304)

Fixes #298.

Author: NMinhNguyen

src/utils/__tests__/isStatelessComponent-test.js

@@ -23,6 +23,7 @@ describe('isStatelessComponent', () => {
 
   const componentIdentifiers = {
     JSX: '<div />',
+    JSXFragment: '<></>',
     'React.createElement': 'React.createElement("div", null)',
     'React.cloneElement': 'React.cloneElement(children, null)',
     'React.Children.only()': 'React.Children.only(children, null)',

src/utils/isStatelessComponent.js

@@ -32,6 +32,7 @@ const validPossibleStatelessComponentTypes = [
 function isJSXElementOrReactCall(path) {
   return (
     path.node.type === 'JSXElement' ||
+    path.node.type === 'JSXFragment' ||
     (path.node.type === 'CallExpression' && isReactCreateElementCall(path)) ||
     (path.node.type === 'CallExpression' && isReactCloneElementCall(path)) ||
     (path.node.type === 'CallExpression' && isReactChildrenElementCall(path))