TWO mislabels in one tool, both found by making it print what the compiler actually said.
1) compiles_standalone() returned a bare False and the caller filed EVERY failure under
"overlay-local TYPE (the real cap)". The dominant real cause is undeclared FILE-SCOPE EXTERNS.
Now returns (ok, stderr) and the skip is classified by actual cc1 output.
2) find_site()'s backward walk over "preceding contiguous externs" skipped BLANK lines but not
COMMENT-ONLY lines, so a full-line /* ---- */ between two extern groups dropped every extern
above it. Comment lines are now skipped like blanks and filtered out of the emitted body so
make_macro never meets a `//`.
RESULT, measured honestly: func_80174CB0 went from "not self-contained" to a 138-member PLAN, but
--recover banked only x3 (ov_SC07_006/007/011); 135 overlays excluded. Those exclusions are NOT
byte divergence (all 138 share h_exact) -- they are the CARRIED EXTERNS colliding with each target
overlay's own decls. The carry is necessary but not sufficient: it must reconcile per-target-TU
(cdecl.compatible(), the shape reconcile_tu already uses). Spec updated in CURRENT_PHASE.md.
- R22 clean-fleet 140/140, 0 failed. dedup-check 1883 validated / 0 failed, C1 coverage complete.
- fleet instr 79.9% (10,501,384 / 13,141,652); +246 ins from the x3.
- WHY THIS MATTERS beyond the numbers: the Phase-21 backlog already prescribed "macro-extern-
injection frees them x134 (~+0.3%)" and it was never built, because the mislabel told every later
session these were the known-hard type wall. A wrong diagnostic label cost ~4 phases.
- cookbook §68. NOTE the exclusion message is ALSO mislabelled ("byte-diverge / irreconcilable"
conflates differing bytes with a non-compiling instantiation) -- logged to fix.
Drew T
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