Object: Move datalayout check into irsymtab::build. NFCI.

This check is a requirement of the irsymtab builder, not of any
particular caller.

Differential Revision: https://reviews.llvm.org/D33970

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305023 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed