Add unknown property warning for use of (#6461)

src/renderers/dom/shared/HTMLDOMPropertyConfig.js

@@ -41,7 +41,7 @@ var HTMLDOMPropertyConfig = {
     async: HAS_BOOLEAN_VALUE,
     autoComplete: 0,
     // autoFocus is polyfilled/normalized by AutoFocusUtils
-    // autoFocus: HAS_BOOLEAN_VALUE,
+    autoFocus: HAS_BOOLEAN_VALUE,
     autoPlay: HAS_BOOLEAN_VALUE,
     capture: HAS_BOOLEAN_VALUE,
     cellPadding: 0,
@@ -205,6 +205,7 @@ var HTMLDOMPropertyConfig = {
   },
   DOMAttributeNames: {
     acceptCharset: 'accept-charset',
+    autoFocus: 'autofocus',
     className: 'class',
     htmlFor: 'for',
     httpEquiv: 'http-equiv',

src/renderers/dom/shared/__tests__/ReactDOMComponent-test.js

@@ -1495,5 +1495,22 @@ describe('ReactDOMComponent', function() {
       //since hard coding the line number would make test too brittle
       expect(parseInt(previousLine, 10) + 12).toBe(parseInt(currentLine, 10));
     });
+
+    it('should suggest property name if available', () => {
+      spyOn(console, 'error');
+
+      ReactTestUtils.renderIntoDocument(React.createElement('label', {for: 'test'}));
+      ReactTestUtils.renderIntoDocument(React.createElement('input', {type: 'text', autofocus: true}));
+
+      expect(console.error.calls.count()).toBe(2);
+
+      expect(console.error.calls.argsFor(0)[0]).toBe(
+        'Warning: Unknown DOM property for. Did you mean htmlFor?\n    in label'
+      );
+
+      expect(console.error.calls.argsFor(1)[0]).toBe(
+        'Warning: Unknown DOM property autofocus. Did you mean autoFocus?\n    in input'
+      );
+    });
   });
 });