XFAIL malloc_zone.cpp for darwin/lsan (llvm#131234)

Silence darwin bot while we investigate the problem

rdar://145873843

Co-authored-by: Mariusz Borsa <[email protected]>

Author: wrotki

compiler-rt/test/sanitizer_common/TestCases/Darwin/malloc_zone.cpp

@@ -17,6 +17,8 @@
 // UBSan does not install a malloc zone.
 // XFAIL: ubsan
 //
+// Curently fails on darwin/lsan rdar://145873843
+// XFAIL: darwin && lsan
 
 #include <malloc/malloc.h>
 #include <stdlib.h>