[sanitizer] Fix interface test on Darwin, failing after 293682.
The test was failing because we export the functions: "__sanitizer_mz*" but they
are not included in the general interface lists.
Also, weak undefined symbols are tagged with U by `nm -g` on Darwin.
// RUN: %clang_asan -dead_strip -O2 %s -o %t.exe
//
+// note: we can not use -D on Darwin.
// RUN: nm -g `%clang_asan %s -fsanitize=address -### 2>&1 | grep "libclang_rt.asan_osx_dynamic.dylib" | sed -e 's/.*"\(.*libclang_rt.asan_osx_dynamic.dylib\)".*/\1/'` \
+// RUN: | grep " [TU] " \
// RUN: | grep -o "\(__asan_\|__ubsan_\|__sancov_\|__sanitizer_\)[^ ]*" \
// RUN: | grep -v "__sanitizer_syscall" \
// RUN: | grep -v "__sanitizer_weak_hook" \
+// RUN: | grep -v "__sanitizer_mz" \
// RUN: | sed -e "s/__asan_version_mismatch_check_v[0-9]+/__asan_version_mismatch_check/" \
// RUN: > %t.exports
//
