Merge pull request #423 from rust-lang/fix/bswap128

Renable intrinsics-integer.rs test

tests/failing-ui-tests.txt

@@ -70,4 +70,3 @@ tests/ui/async-await/deep-futures-are-freeze.rs
 tests/ui/closures/capture-unsized-by-ref.rs
 tests/ui/coroutine/resume-after-return.rs
 tests/ui/macros/rfc-2011-nicer-assert-messages/all-expr-kinds.rs
-tests/ui/intrinsics/intrinsics-integer.rs

tests/failing-ui-tests12.txt

@@ -40,3 +40,4 @@ tests/ui/sse2.rs
 tests/ui/codegen/issue-79865-llvm-miscompile.rs
 tests/ui/std-backtrace.rs
 tests/ui/mir/alignment/packed.rs
+tests/ui/intrinsics/intrinsics-integer.rs