Merge pull request #5611 from dittos/irc-remove-2ndarg

Clean up caller sites of instantiateReactComponent

src/renderers/dom/client/ReactMount.js

@@ -330,7 +330,7 @@ var ReactMount = {
     );
 
     ReactBrowserEventEmitter.ensureScrollValueMonitoring();
-    var componentInstance = instantiateReactComponent(nextElement, null);
+    var componentInstance = instantiateReactComponent(nextElement);
 
     // The initial render is synchronous but any updates that happen during
     // rendering, in componentWillMount or componentDidMount, will be batched

src/renderers/dom/server/ReactServerRendering.js

@@ -41,7 +41,7 @@ function renderToStringImpl(element, makeStaticMarkup) {
     transaction = ReactServerRenderingTransaction.getPooled(makeStaticMarkup);
 
     return transaction.perform(function() {
-      var componentInstance = instantiateReactComponent(element, null);
+      var componentInstance = instantiateReactComponent(element);
       var markup = componentInstance.mountComponent(
         transaction,
         null,

src/renderers/shared/reconciler/ReactChildReconciler.js

@@ -32,7 +32,7 @@ function instantiateChild(childInstances, child, name) {
     );
   }
   if (child != null && keyUnique) {
-    childInstances[name] = instantiateReactComponent(child, null);
+    childInstances[name] = instantiateReactComponent(child);
   }
 }
 
@@ -101,10 +101,7 @@ var ReactChildReconciler = {
           ReactReconciler.unmountComponent(prevChild, name);
         }
         // The child must be instantiated before it's mounted.
-        var nextChildInstance = instantiateReactComponent(
-          nextElement,
-          null
-        );
+        var nextChildInstance = instantiateReactComponent(nextElement);
         nextChildren[name] = nextChildInstance;
       }
     }