fix FileCheck variables for test added with r280677

The script (utils/update_test_checks.py) seems to have problems 
with variable names that start with the same string. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280679 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed