[Bug sanitizer/55679] new asan tests from r194458 fail on x86_64-apple-darwin10

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55679

--- Comment #9 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-12-14 00:45:26 UTC ---
The c-c++-common/asan/swapcontext-test-1.c test case should have...

// { dg-skip-if "" { *-*-darwin* } { "*" } { "" } }

since ucontext support was depreciated in Mac OS X 10.6 and removed entirely in
Mac OS X 10.7.