Travis CI reliability fixes: preload package manager and increase tim…

Summary:
- Consolidate common code in iOS and tvOS test scripts
- Start the packager before starting tests, to improve reliability
- Increase timeout value in RCTTestRunner.m
Closes https://github.com/facebook/react-native/pull/10378

Differential Revision: D4028364

Pulled By: bestander

fbshipit-source-id: 24c2124a1c62643a02f0668b60a67b971e08d1a3

React/Modules/RCTStatusBarManager.h

@@ -14,8 +14,10 @@
 
 @interface RCTConvert (UIStatusBar)
 
+#if !TARGET_OS_TV
 + (UIStatusBarStyle)UIStatusBarStyle:(id)json;
 + (UIStatusBarAnimation)UIStatusBarAnimation:(id)json;
+#endif
 
 @end
 

React/Modules/RCTStatusBarManager.m

@@ -13,6 +13,7 @@
 #import "RCTLog.h"
 #import "RCTUtils.h"
 
+#if !TARGET_OS_TV
 @implementation RCTConvert (UIStatusBar)
 
 RCT_ENUM_CONVERTER(UIStatusBarStyle, (@{
@@ -28,6 +29,7 @@ RCT_ENUM_CONVERTER(UIStatusBarAnimation, (@{
 }), UIStatusBarAnimationNone, integerValue);
 
 @end
+#endif
 
 @implementation RCTStatusBarManager
 
@@ -51,6 +53,8 @@ RCT_EXPORT_MODULE()
            @"statusBarFrameWillChange"];
 }
 
+#if !TARGET_OS_TV
+
 - (void)startObserving
 {
   NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
@@ -128,4 +132,6 @@ RCT_EXPORT_METHOD(setNetworkActivityIndicatorVisible:(BOOL)visible)
   RCTSharedApplication().networkActivityIndicatorVisible = visible;
 }
 
+#endif //TARGET_OS_TV
+
 @end