Update bitcode tests to pass sources to llvm_multisource.

Since these tests aren't built by default they accidentally got missed out when
Matthias refactored our CMake functions.



git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@339242 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed