add radar number to testcase.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187073 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info: Fix an oversight of r186553. Ensure that the function prologue
of an artificial function gets an artificial location as well.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187074 91177308-0d34-0410-b5e6-96231b3b80d8