Update aosp/master compiler-rt for rebase to r239765

Change-Id: I722dcde07e4f76a8a35ca701d89be5f311840e74
diff --git a/test/asan/TestCases/use-after-poison.cc b/test/asan/TestCases/use-after-poison.cc
index 3b247ff..ecca2c8 100644
--- a/test/asan/TestCases/use-after-poison.cc
+++ b/test/asan/TestCases/use-after-poison.cc
@@ -2,7 +2,7 @@
 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
 //
 // Check that we can disable it
-// RUN: env ASAN_OPTIONS=allow_user_poisoning=0 %run %t
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:allow_user_poisoning=0 %run %t
 
 #include <stdlib.h>