haskell: type error reporting — hk-expr->brief + hk-infer-decl/prog (+21 tests, 455/455)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/haskell/test.sh

@@ -14,7 +14,7 @@ cd "$(git rev-parse --show-toplevel)"
 SX_SERVER="hosts/ocaml/_build/default/bin/sx_server.exe"
 if [ ! -x "$SX_SERVER" ]; then
   # Fall back to the main-repo build if we're in a worktree.
-  MAIN_ROOT=$(git worktree list | head -1 | awk '{print $1}')
+  MAIN_ROOT=$(git worktree list | awk 'NR==1{print $1}')
   if [ -x "$MAIN_ROOT/$SX_SERVER" ]; then
     SX_SERVER="$MAIN_ROOT/$SX_SERVER"
   else
@@ -42,6 +42,9 @@ FAILED_FILES=()
 
 for FILE in "${FILES[@]}"; do
   [ -f "$FILE" ] || { echo "skip $FILE (not found)"; continue; }
+  # Load infer.sx only for infer test files (it adds ~6s overhead).
+  INFER_LOAD=""
+  case "$FILE" in *infer*) INFER_LOAD='(load "lib/haskell/infer.sx")' ;; esac
   TMPFILE=$(mktemp)
   cat > "$TMPFILE" <<EPOCHS
 (epoch 1)
@@ -52,7 +55,7 @@ for FILE in "${FILES[@]}"; do
 (load "lib/haskell/runtime.sx")
 (load "lib/haskell/match.sx")
 (load "lib/haskell/eval.sx")
-(load "lib/haskell/infer.sx")
+$INFER_LOAD
 (load "lib/haskell/testlib.sx")
 (epoch 2)
 (load "$FILE")
@@ -60,14 +63,14 @@ for FILE in "${FILES[@]}"; do
 (eval "(list hk-test-pass hk-test-fail)")
 EPOCHS
 
-  OUTPUT=$(timeout 60 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
+  OUTPUT=$(timeout 240 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
   rm -f "$TMPFILE"
 
   # Output format: either "(ok 3 (P F))" on one line (short result) or
   # "(ok-len 3 N)\n(P F)" where the value appears on the following line.
   LINE=$(echo "$OUTPUT" | awk '/^\(ok-len 3 / {getline; print; exit}')
   if [ -z "$LINE" ]; then
-    LINE=$(echo "$OUTPUT" | grep -E '^\(ok 3 \([0-9]+ [0-9]+\)\)' | tail -1 \
+    LINE=$(echo "$OUTPUT" | { grep -E '^\(ok 3 \([0-9]+ [0-9]+\)\)' || true; } | tail -1 \
             | sed -E 's/^\(ok 3 //; s/\)$//')
   fi
   if [ -z "$LINE" ]; then
@@ -95,14 +98,14 @@ EPOCHS
 (load "lib/haskell/runtime.sx")
 (load "lib/haskell/match.sx")
 (load "lib/haskell/eval.sx")
-(load "lib/haskell/infer.sx")
+$INFER_LOAD
 (load "lib/haskell/testlib.sx")
 (epoch 2)
 (load "$FILE")
 (epoch 3)
 (eval "(map (fn (f) (get f \"name\")) hk-test-fails)")
 EPOCHS
-    FAILS=$(timeout 60 "$SX_SERVER" < "$TMPFILE2" 2>&1 | grep -E '^\(ok 3 ' || true)
+    FAILS=$(timeout 240 "$SX_SERVER" < "$TMPFILE2" 2>&1 | grep -E '^\(ok 3 ' || true)
     rm -f "$TMPFILE2"
     echo "    $FAILS"
   elif [ "$VERBOSE" = "1" ]; then