Add new tests:
- tests/usr.bin/cc/t_asan_poison.sh
- tests/usr.bin/c++/t_asan_poison.sh
These tests verify the following build options:
- regular
- profile
- pic
- pie
- compat32
- (static unsupported)
These tests verify whether ASan code can include compiler and sanitizer
specific header: <sanitizer/asan_interface.h>. The testing code checks
the ASAN_POISON_MEMORY_REGION() functionality, poisoning valid memory and
asserting that it triggers expected failure.
Patch submitted by <Siddharth Muralee>
8a7b75cec0