[Bug sanitizer/63939] [5 Regression] Massive asan failures (356) on darwin

[howarth at bromo dot med.uc.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63939

--- Comment #22 from howarth at bromo dot med.uc.edu ---
At r217817 on x86_64-apple-darwin14, without llvm-symbolizer in the path but
with https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534#c50 applied, I still
see failures for...

FAIL: c-c++-common/asan/null-deref-1.c   -O1  output pattern test, is
ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -O2  output pattern test, is
ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -O3 -fomit-frame-pointer  output
pattern test, is ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -O3 -g  output pattern test, is
ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -Os  output pattern test, is
ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -O2 -flto -flto-partition=none  output
pattern test, is ASAN:SIGSEGV
FAIL: c-c++-common/asan/null-deref-1.c   -O2 -flto  output pattern test, is
ASAN:SIGSEGV

as well as the unpatched  c-c++-common/asan/strlen-overflow-1.c failures.