Index: lib/asan/tests/asan_test_main.cc
===================================================================
--- lib/asan/tests/asan_test_main.cc
+++ lib/asan/tests/asan_test_main.cc
@@ -13,16 +13,15 @@
 #include "asan_test_utils.h"
 #include "sanitizer_common/sanitizer_platform.h"
 
-// Default ASAN_OPTIONS for the unit tests. Let's turn symbolication off to
-// speed up testing (unit tests don't use it anyway).
+// Default ASAN_OPTIONS for the unit tests.
 extern "C" const char* __asan_default_options() {
 #if SANITIZER_MAC
   // On Darwin, we default to `abort_on_error=1`, which would make tests run
   // much slower. Let's override this and run lit tests with 'abort_on_error=0'.
   // Also, make sure we do not overwhelm the syslog while testing.
-  return "symbolize=false:abort_on_error=0:log_to_syslog=0";
+  return "abort_on_error=0:log_to_syslog=0";
 #else
-  return "symbolize=false";
+  return "";
 #endif
 }