Update test runners to iOS10.3

Author: javache

RNTester/RNTesterIntegrationTests/RNTesterSnapshotTests.m

@@ -47,7 +47,7 @@ - (void)test##name                      \
 RCT_TEST(SwitchExample)
 RCT_TEST(SliderExample)
 // TabBarExample on tvOS passes locally but not on Travis
-// RCT_TEST(TabBarExample) // Current broken in Travis CI
+RCT_TEST(TabBarExample)
 #endif
 
 - (void)testZZZNotInRecordMode

scripts/objc-test-ios.sh

@@ -15,7 +15,7 @@ cd "$ROOT"
 
 SCHEME="RNTester"
 SDK="iphonesimulator"
-DESTINATION="platform=iOS Simulator,name=iPhone 5s,OS=10.1"
+DESTINATION="platform=iOS Simulator,name=iPhone 5s,OS=10.3.1"
 
-# If there is a "test" argument, pass it to the test script.
+# If there's a "test" argument, pass it to the test script.
 . ./scripts/objc-test.sh $1

scripts/objc-test-tvos.sh

@@ -15,7 +15,7 @@ cd "$ROOT"
 
 SCHEME="RNTester-tvOS"
 SDK="appletvsimulator"
-DESTINATION="platform=tvOS Simulator,name=Apple TV 1080p,OS=10.1"
+DESTINATION="platform=tvOS Simulator,name=Apple TV 1080p,OS=10.2"
 
 # If there's a "test" argument, pass it to the test script.
 . ./scripts/objc-test.sh $1