[NFC] Adjust test filename

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370939 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/sub-and-or-not-xor.ll b/test/Transforms/InstCombine/sub-and-or-neg-xor.ll
similarity index 100%
rename from test/Transforms/InstCombine/sub-and-or-not-xor.ll
rename to test/Transforms/InstCombine/sub-and-or-neg-xor.ll