ci: run Test::Nginx on ASan nginx 1.31.4 with no-pool - #65
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Build with -fsanitize=address and OpenResty no-pool. Keep ASAN_OPTIONS=detect_leaks=0 so prove catches UAF/OOB via nginx abort; leak reports stay out of CI.
Instrument array bounds with -fno-sanitize-recover so a trap aborts nginx and prove fails. Keep detect_leaks=0.
Pass the struct into method_code and decode_http_lang so those fields stay char[N] for -fsanitize=bounds. Size hash12 dest as char out[13], like ngx_md5_final.
Run gcc AddressSanitizer+bounds on ubuntu-24.04 and clang HWAddressSanitizer on native ubuntu-24.04-arm. Configure without sanitizer flags (nginx sizeof probes SIGILL under HWASan), then patch objs/Makefile CFLAGS and LINK so the real binary is instrumented.
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Build with -fsanitize=address and OpenResty no-pool. Keep ASAN_OPTIONS=detect_leaks=0 so prove catches UAF/OOB via nginx abort; leak reports stay out of CI.