Remove obsolete XFAIL for a test that used to sometimes miscompile under

FreeBSD with gcc 4.2.1, a long time ago (see r113824).  Noticed by Pete
Cooper.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276730 91177308-0d34-0410-b5e6-96231b3b80d8

unittests/ADT/APIntTest.cpp

@@ -47,9 +47,6 @@ TEST(APIntTest, i128_NegativeCount) {
   EXPECT_EQ(-1, Minus1.getSExtValue());
 }
 
-// XFAIL this test on FreeBSD where the system gcc-4.2.1 seems to miscompile it.
-#if defined(__llvm__) || !defined(__FreeBSD__)
-
 TEST(APIntTest, i33_Count) {
   APInt i33minus2(33, static_cast<uint64_t>(-2), true);
   EXPECT_EQ(0u, i33minus2.countLeadingZeros());
@@ -61,8 +58,6 @@ TEST(APIntTest, i33_Count) {
   EXPECT_EQ(((uint64_t)-2)&((1ull<<33) -1), i33minus2.getZExtValue());
 }
 
-#endif
-
 TEST(APIntTest, i65_Count) {
   APInt i65(65, 0, true);
   EXPECT_EQ(65u, i65.countLeadingZeros());