[ADT] Use a nonce type with at least 4 byte alignment.

We didn't actually statically check this, and so it worked 25% of the
time for me. =/ Really sorry it took so long to fix, I shouldn't leave
the commit log editor window open without saving and landing the commit.
=[

llvm-svn: 256528

1 files changed, 1 insertions, 0 deletions

diff --git a/llvm/unittests/ADT/PointerIntPairTest.cpp b/llvm/unittests/ADT/PointerIntPairTest.cpp
index 956c250..e27a582 100644
--- a/llvm/unittests/ADT/PointerIntPairTest.cpp
+++ b/llvm/unittests/ADT/PointerIntPairTest.cpp
@@ -16,6 +16,7 @@ namespace {
 
 TEST(PointerIntPairTest, GetSet) {
   struct S {
+    int i;
   };
   S s;