libsanitizer: merge from upstream (87e6e490e79384a5)

libsanitizer/MERGE

libsanitizer/asan/asan_globals.cpp

libsanitizer/asan/asan_interceptors.h

libsanitizer/asan/asan_mapping.h

libsanitizer/hwasan/hwasan.cpp

libsanitizer/hwasan/hwasan.h

libsanitizer/hwasan/hwasan_allocator.cpp

libsanitizer/hwasan/hwasan_allocator.h

libsanitizer/hwasan/hwasan_checks.h

libsanitizer/hwasan/hwasan_interceptors.cpp

...itizer/sanitizer_common/sanitizer_common_interceptors.inc

libsanitizer/sanitizer_common/sanitizer_common_syscalls.inc

libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cpp

libsanitizer/sanitizer_common/sanitizer_mac.cpp

libsanitizer/sanitizer_common/sanitizer_mac.h

...itizer/sanitizer_common/sanitizer_platform_interceptors.h

...izer/sanitizer_common/sanitizer_platform_limits_linux.cpp

...izer/sanitizer_common/sanitizer_platform_limits_posix.cpp

...itizer/sanitizer_common/sanitizer_platform_limits_posix.h

libsanitizer/sanitizer_common/sanitizer_procmaps_mac.cpp