Fix some files that got left behind in early changeset to unnamed unions fix. Credit to Roman Divacky.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@80913 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ctzti2.c b/lib/ctzti2.c
index fdfac0d..f2d41fe 100644
--- a/lib/ctzti2.c
+++ b/lib/ctzti2.c
@@ -25,8 +25,8 @@
 {
     twords x;
     x.all = a;
-    const di_int f = -(x.low == 0);
-    return __builtin_ctzll((x.high & f) | (x.low & ~f)) +
+    const di_int f = -(x.s.low == 0);
+    return __builtin_ctzll((x.s.high & f) | (x.s.low & ~f)) +
               ((si_int)f & ((si_int)(sizeof(di_int) * CHAR_BIT)));
 }