fix comments

Author: BarryThePenguin

lib/util/Components.js

@@ -362,13 +362,14 @@ function componentRule(rule, context) {
         var isFunction = /Function/.test(node.type); // Functions
         var isMethod = node.parent && node.parent.type === 'MethodDefinition'; // Classes methods
         var isArgument = node.parent && node.parent.type === 'CallExpression'; // Arguments (callback, etc.)
-        var isJSX = node.parent && node.parent.type === 'JSXExpressionContainer';
+        // Attribute Expressions inside JSX Elements (<button onClick={() => props.handleClick()}></button>)
+        var isJSXExpressionContainer = node.parent && node.parent.type === 'JSXExpressionContainer';
         // Stop moving up if we reach a class or an argument (like a callback)
         if (isClass || isArgument) {
           return null;
         }
-        // Return the node if it is a function that is not a class method
-        if (isFunction && !isMethod && !isJSX) {
+        // Return the node if it is a function that is not a class method and is not inside a JSX Element
+        if (isFunction && !isMethod && !isJSXExpressionContainer) {
           return node;
         }
         scope = scope.upper;