Get a few more Fiber tests passing (#8149)

* Get a few more Fiber tests passing

* Fix Flow and wrap in __DEV__

src/isomorphic/classic/element/ReactElementValidator.js

@@ -25,12 +25,13 @@ var ReactElement = require('ReactElement');
 var checkReactTypeSpec = require('checkReactTypeSpec');
 
 var canDefineProperty = require('canDefineProperty');
+var getComponentName = require('getComponentName');
 var getIteratorFn = require('getIteratorFn');
 var warning = require('warning');
 
 function getDeclarationErrorAddendum() {
   if (ReactCurrentOwner.current) {
-    var name = ReactCurrentOwner.current.getName();
+    var name = getComponentName(ReactCurrentOwner.current);
     if (name) {
       return ' Check the render method of `' + name + '`.';
     }
@@ -94,7 +95,7 @@ function validateExplicitKey(element, parentType) {
       element._owner !== ReactCurrentOwner.current) {
     // Give the component that originally created this child.
     childOwner =
-      ` It was passed a child from ${element._owner.getName()}.`;
+      ` It was passed a child from ${getComponentName(element._owner)}.`;
   }
 
   warning(

src/isomorphic/hooks/ReactComponentTreeHook.js

@@ -14,6 +14,7 @@
 
 var ReactCurrentOwner = require('ReactCurrentOwner');
 
+var getComponentName = require('getComponentName');
 var invariant = require('invariant');
 var warning = require('warning');
 
@@ -310,7 +311,7 @@ var ReactComponentTreeHook = {
       info += describeComponentFrame(
         name,
         topElement._source,
-        owner && owner.getName()
+        owner && getComponentName(owner)
       );
     }
 

src/renderers/dom/shared/CSSPropertyOperations.js

@@ -17,6 +17,7 @@ var ReactInstrumentation = require('ReactInstrumentation');
 
 var camelizeStyleName = require('camelizeStyleName');
 var dangerousStyleValue = require('dangerousStyleValue');
+var getComponentName = require('getComponentName');
 var hyphenateStyleName = require('hyphenateStyleName');
 var memoizeStringOnly = require('memoizeStringOnly');
 var warning = require('warning');
@@ -114,7 +115,7 @@ if (__DEV__) {
 
   var checkRenderMessage = function(owner) {
     if (owner) {
-      var name = owner.getName();
+      var name = getComponentName(owner);
       if (name) {
         return ' Check the render method of `' + name + '`.';
       }

src/renderers/dom/shared/utils/LinkedValueUtils.js

@@ -13,6 +13,7 @@
 
 var React = require('React');
 
+var getComponentName = require('getComponentName');
 var invariant = require('invariant');
 var warning = require('warning');
 
@@ -88,7 +89,7 @@ var propTypes = {
 var loggedTypeFailures = {};
 function getDeclarationErrorAddendum(owner) {
   if (owner) {
-    var name = owner.getName();
+    var name = getComponentName(owner);
     if (name) {
       return ' Check the render method of `' + name + '`.';
     }

src/renderers/dom/shared/validateDOMNesting.js

@@ -12,6 +12,7 @@
 'use strict';
 
 var emptyFunction = require('emptyFunction');
+var getComponentName = require('getComponentName');
 var warning = require('warning');
 
 var validateDOMNesting = emptyFunction;
@@ -371,16 +372,16 @@ if (__DEV__) {
 
       var UNKNOWN = '(unknown)';
       var childOwnerNames = childOwners.slice(deepestCommon + 1).map(
-        (inst) => inst.getName() || UNKNOWN
+        (inst) => getComponentName(inst) || UNKNOWN
       );
       var ancestorOwnerNames = ancestorOwners.slice(deepestCommon + 1).map(
-        (inst) => inst.getName() || UNKNOWN
+        (inst) => getComponentName(inst) || UNKNOWN
       );
       var ownerInfo = [].concat(
         // If the parent and child instances have a common owner ancestor, start
         // with that -- otherwise we just start with the parent's owners.
         deepestCommon !== -1 ?
-          childOwners[deepestCommon].getName() || UNKNOWN :
+          getComponentName(childOwners[deepestCommon]) || UNKNOWN :
           [],
         ancestorOwnerNames,
         ancestorTag,

src/shared/utils/getComponentName.js

@@ -0,0 +1,40 @@
+/**
+ * Copyright 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
+ * @providesModule getComponentName
+ */
+
+'use strict';
+
+import type { ReactInstance } from 'ReactInstanceType';
+import type { Fiber } from 'ReactFiber';
+
+function getComponentName(instanceOrFiber : ReactInstance | Fiber) : string | null {
+  if (__DEV__) {
+    if (typeof instanceOrFiber.getName === 'function') {
+      // Stack reconciler
+      const instance = ((instanceOrFiber : any) : ReactInstance);
+      return instance.getName() || 'Component';
+    }
+    if (typeof instanceOrFiber.tag === 'number') {
+      // Fiber reconciler
+      const fiber = ((instanceOrFiber : any) : Fiber);
+      const {type} = fiber;
+      if (typeof type === 'string') {
+        return type;
+      }
+      if (typeof type === 'function') {
+        return type.displayName || type.name || null;
+      }
+    }
+  }
+  return null;
+}
+
+module.exports = getComponentName;