Math: work around GCC 4.9 crash in Android NDK.
Math: work around GCC 4.9 crash in Android NDK.

Seems to be only in case of this particular function in the test and
nowehere else. Won't bother investigating further.

MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum