Weak non-function symbols were being accessed directly, which is

Weak non-function symbols were being accessed directly, which is
incorrect, as the chosen representative of the weak symbol may not live
with the code in question. Always indirect the access through the TOC
instead.

Patch by Kyle Butt!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253708 91177308-0d34-0410-b5e6-96231b3b80d8