go: Phase 9 closed — 12 end-to-end programs, total 609/609 [nothing]

12 canonical Go programs running through the full pipeline (lex +
parse + types + eval + sched + stdlib): sieve-of-Eratosthenes via
boolean slice (modulo-free), linear search, slice reverse, fib(10),
sum-of-squares via generic Map+Reduce, word-freq counter, channel
pipeline (gen→sq→sum), worker pool, bubble sort, sentence-reverse,
Filter+len, Ackermann, defer+recover on div-by-zero.

Each test threads ONE self-contained Go program through go-eval-
program. The v0 limitations chiselled in earlier phases (float
division, sync spawn, type erasure, nil-as-unbound) are now
durable as commit-trail artifacts; e2e variants written to avoid
them where possible. HTTP-ish ping-pong + WaitGroup deferred
(real preemption + sync package needed).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lib/go/conformance.sh

@@ -33,6 +33,7 @@ SUITES=(
   "eval|go-eval-test-pass|go-eval-test-count"
   "runtime|go-rt-test-pass|go-rt-test-count"
   "stdlib|go-std-test-pass|go-std-test-count"
+  "e2e|go-e2e-test-pass|go-e2e-test-count"
 )
 
 cat > "$TMPFILE" <<'EPOCHS'
@@ -53,6 +54,7 @@ cat > "$TMPFILE" <<'EPOCHS'
 (load "lib/go/tests/eval.sx")
 (load "lib/go/tests/runtime.sx")
 (load "lib/go/tests/stdlib.sx")
+(load "lib/go/tests/e2e.sx")
 EPOCHS
 
 idx=0
@@ -116,9 +118,7 @@ cat > lib/go/scoreboard.json <<JSON
   "language": "go",
   "total_pass": $TOTAL_PASS,
   "total": $TOTAL_COUNT,
-  "suites": [$JSON_SUITES,
-    {"name":"e2e","pass":0,"total":0,"status":"pending"}
-  ]
+  "suites": [$JSON_SUITES]
 }
 JSON
 
@@ -129,7 +129,7 @@ cat > lib/go/scoreboard.md <<MD
 
 |  | Suite | Pass | Total |
 |---|---|---|---|
-$MD_ROWS| ⬜ | e2e | 0 | 0 |
+$MD_ROWS
 
 Generated by \`lib/go/conformance.sh\`.
 MD