Fix erroneous test; was failing on darwin-ppc32. Fixes PR18469.

llvm-svn: 199542

libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp

@@ -38,6 +38,10 @@ int main()
     test_alignment_of<char[3], 1>();
     test_alignment_of<int, 4>();
     test_alignment_of<double, 8>();
+#if (defined(__ppc__) && !defined(__ppc64__))
+    test_alignment_of<bool, 4>();	// 32-bit PPC has four byte bool
+#else
     test_alignment_of<bool, 1>();
+#endif
     test_alignment_of<unsigned, 4>();
 }