Compile some tests for the host

Compile some tests for the host to ease debugging with valgrind or gdb.

Bug: 27208635
Change-Id: Ib46fcfa333ceb721f26efca00b2fa60b9fba44e6
diff --git a/libmemunreachable/bionic.h b/libmemunreachable/bionic.h
index 92de24a..83d07a8 100644
--- a/libmemunreachable/bionic.h
+++ b/libmemunreachable/bionic.h
@@ -18,6 +18,8 @@
 #define LIBMEMUNREACHABLE_BIONIC_H_
 
 #include <sys/cdefs.h>
+#include <stdint.h>
+#include <stdlib.h>
 
 __BEGIN_DECLS