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test: migrate Fam9 match/tagged value tests to @test (#5-C5)

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fold-2 chunk C5 (drew's Fam8-13 plan), the highest-risk chunk: 21 match/tagged
value-row C drivers re-homed. 20 -> test/lang/*_test.ww @test row-tables + 12
runww //ww:error carriers (both stages reject). The global-tag cluster
(globtag*/globstructwiden/taggedderefstore/...), which sits on the #15/#17
global-ptr fix, was empirically probed byte-id CLEAN -- the predicted hotspot
surfaced ZERO fresh cs!=ww. Carves: variant_chain_b95 #81 -> _runonly (genuinely
diverges at HEAD); callret_bound277 #277 -> slim C pin (cs-runs/ww-rejects),
mutation-gated. 929_tagged_memarg kept whole (SSE-ABI asm conformance). 19
drivers deleted, 944_variant_chain slimmed to the #277 pin.

The match-on-tagged-struct-field divergence (former #26) probed RESOLVED for all
its cited shapes (938 voidstr_field/recursion_torture, tagnorm dedup_match all
byte-id cs==ww + value-correct) -- closed no-reproducer-at-HEAD, attribution to
#15/#17 INFERRED. Those rows migrate as normal byte-id @test and serve as the
REGRESSION SENTINEL for the inferred close (a resurgence trips the gate).

LANGBYTEID floor 93->113; test count 374->355 (19 deleted; 929 + 944_variant_chain
kept). do-not-auto-batch (926_tagscr/940_global_sret/940_str_forrange) untouched.
This commit is contained in:
Hojun-Cho
2026-06-24 04:27:00 +09:00
parent 60dec4a6bf
commit 246e5bb90e
54 changed files with 1955 additions and 5820 deletions
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11
test/wcc/data/vchain_bare_ambig/case.ww Normal file
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@@ -0,0 +1,11 @@
//ww:error "bare source structurally matches >=2 NAMED variants"
// 944_variant_chain_b95 bare_ambig: a bare *i32 source matches both p1 and p2
// (#15/#218). BOTH stages loud-stop.
package main;
type p1 = *i32;
type p2 = *i32;
export fn main() i32 = {
let x: i32 = 7;
let v: (p1 | p2) = &x;
return 0;
};