Fix this.props.children marked as missing in props validation (fixes #7)

Author: yannickcr

lib/rules/prop-types.js

@@ -61,7 +61,7 @@ module.exports = function(context) {
       }
 
       for (var i = 0, j = usedPropTypes.length; i < j; i++) {
-        if (declaredPropTypes.indexOf(usedPropTypes[i]) === -1) {
+        if (declaredPropTypes.indexOf(usedPropTypes[i]) === -1 && usedPropTypes[i] !== 'children') {
           context.report(node, '\'' + usedPropTypes[i] + '\' is missing in props validation');
         }
       }

tests/lib/rules/prop-types.js

@@ -55,6 +55,16 @@ eslintTester.addRuleTest('lib/rules/prop-types', {
             ecmaFeatures: {
               jsx: true
             }
+        }, {
+            code: '\
+              var Hello = React.createClass({\
+                render: function() {\
+                  return <div>Hello World {this.props.children}</div>;\
+                }\
+              });',
+            ecmaFeatures: {
+              jsx: true
+            }
         }
     ],