[ASan] Fix IRTests/InstructionsTest.UnaryOperator
[ASan] Fix IRTests/InstructionsTest.UnaryOperator

Fix ASan regression from r374782.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@374808 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm