In verbose mode, we emit a warning if the DWOId of a skeleton CU
mismatches the DWOId of the referenced module. This patch updates the
cached DWOId after a module has been loaded to the DWOId of the module
on disk (instead of storing the DWOId we expected to load). This
allows us to correctly emit the mismatch warning for all subsequent
object files that want to import the same module. This patch also
ensures both warnings are only emitted in verbose mode.
rdar://problem/26214027
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269383 91177308-0d34-0410-b5e6-96231b3b80d8