test on Xcode 6.4 / iOS 8.4

.travis.yml

@@ -25,10 +25,10 @@ matrix:
           sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.5' ]
           packages: [ 'gdb', 'clang-3.5', 'libstdc++-4.9-dev', 'libstdc++6', 'libllvm3.4', 'xutils-dev', 'libxxf86vm-dev', 'x11proto-xf86vidmode-dev', 'mesa-utils' ]
     - os: osx
-      osx_image: beta-xcode6.3
+      osx_image: beta-xcode6.4
       env: FLAVOR=osx BUILDTYPE=Debug
     - os: osx
-      osx_image: beta-xcode6.3
+      osx_image: beta-xcode6.4
       env: FLAVOR=ios BUILDTYPE=Release
     - os: linux
       env: FLAVOR=android ANDROID_ABI=arm-v7 BUILDTYPE=Release

scripts/ios/test.sh

@@ -7,5 +7,5 @@ set -u
 xctool \
     -project ./test/ios/ios-tests.xcodeproj \
     -scheme 'Mapbox GL Tests' \
-    -sdk iphonesimulator8.3 \
+    -sdk iphonesimulator8.4 \
     test