Debug Info: update testing cases to pass verifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187362 91177308-0d34-0410-b5e6-96231b3b80d8
SLPVectorier: update the debug location for the new instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187363 91177308-0d34-0410-b5e6-96231b3b80d8
Add the C source code to the test to make it easier to update when debug info changes.
Thanks Eric.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187368 91177308-0d34-0410-b5e6-96231b3b80d8