[ios] Add simulator dSYM slices to build output. (#5740)

Our release builds for device (with lipoed simulator binary) create
a dSYM files for both the device and simulator. However the script
only copied the device dSYM file to the output location.

This adds a step to lipo together both the device and simulator dSYM files.
Mapbox.framework.dSYM now holds armv7 and arm64 slices.

platform/ios/scripts/package.sh

@@ -127,9 +127,19 @@ if [[ ${BUILD_FOR_DEVICE} == true ]]; then
         cp -r \
             ${PRODUCTS}/${BUILDTYPE}-iphoneos/${NAME}.framework \
             ${OUTPUT}/dynamic/
+
         if [[ -e ${PRODUCTS}/${BUILDTYPE}-iphoneos/${NAME}.framework.dSYM ]]; then
+            step "Copying dSYM"
             cp -r ${PRODUCTS}/${BUILDTYPE}-iphoneos/${NAME}.framework.dSYM \
-                ${OUTPUT}/dynamic/
+                  ${OUTPUT}/dynamic/
+            if [[ -e ${PRODUCTS}/${BUILDTYPE}-iphonesimulator/${NAME}.framework.dSYM ]]; then
+                step "Merging device and simulator dSYMs…"
+                lipo \
+                    ${PRODUCTS}/${BUILDTYPE}-iphoneos/${NAME}.framework.dSYM/Contents/Resources/DWARF/${NAME} \
+                    ${PRODUCTS}/${BUILDTYPE}-iphonesimulator/${NAME}.framework.dSYM/Contents/Resources/DWARF/${NAME} \
+                    -create -output ${OUTPUT}/dynamic/${NAME}.framework.dSYM/Contents/Resources/DWARF/${NAME}
+                lipo -info ${OUTPUT}/dynamic/${NAME}.framework.dSYM/Contents/Resources/DWARF/${NAME}
+            fi
         fi
 
         step "Merging simulator dynamic library into device dynamic library…"
@@ -158,6 +168,7 @@ else
             ${PRODUCTS}/${BUILDTYPE}-iphonesimulator/${NAME}.framework \
             ${OUTPUT}/dynamic/${NAME}.framework
         if [[ -e ${PRODUCTS}/${BUILDTYPE}-iphonesimulator/${NAME}.framework.dSYM ]]; then
+            step "Copying dSYM"
             cp -r ${PRODUCTS}/${BUILDTYPE}-iphonesimulator/${NAME}.framework.dSYM \
                 ${OUTPUT}/dynamic/
         fi