NEXT.md's queued section becomes a landed one. The headline is not the
flag: ASan reaches Flan code only because Emit now attributes every
define, and UBSan reaches none of it and has no lever that would, so the
shift-UB and float-cast items that section listed are still open and are
a compiler feature rather than a flag.
The clean result is written with its reach. println.flan pushes a
1100-character string through escaped[1024] on purpose, so that buffer
is genuinely covered; scratch[64] never sees more than 20 characters;
and the 4K result cap, the dev registry guard, SNAP_MAX/SNAP_NAMES and
condition_name[128] are on the daemon path and not in the corpus at all
-- read, not tested. Two defects fixed, both found by reading. Three of
bounds.flan's six out-of-bounds cases caught with the checks off, with
the other three tabulated and explained, and the caveat that ASan sees
out-of-object and not out-of-subobject access, so three of six is a
ceiling and not a measurement.
BUILT.md gets the durable half: the attribute, the absent UBSan lever,
why --sanitize does not force -O0 when --debug does, and the -O0/-O2
divergence that earned it.
Joseph Ferano
c806125742