build: give aliases the same visibility
build: give aliases the same visibility

ARM EABI also uses function aliases.  Ensure that those aliased functions are
given proper visibility annotations.

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@285478 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt