macro(match): add golden for type-guard minimal (no Box); script to validate; all pass

apps/tests/macro/match/guard_type_basic_min.nyash

@@ -0,0 +1,7 @@
+local x = "hello"
+local r = match x {
+  StringBox(s) if s.length() > 3 => 1
+  _ => 0
+}
+print(r)
+

tools/test/golden/macro/match_guard_type_basic_min.expanded.json

@@ -0,0 +1 @@
+{"kind":"Program","statements":[{"inits":[{"kind":"Literal","value":{"type":"string","value":"hello"}}],"kind":"Local","variables":["x"]},{"inits":[{"kind":"Program","statements":[{"inits":[{"kind":"Variable","name":"x"}],"kind":"Local","variables":["__ny_match_scrutinee_32"]},{"condition":{"arguments":[{"kind":"Literal","value":{"type":"string","value":"StringBox"}}],"kind":"MethodCall","method":"is","object":{"kind":"Variable","name":"__ny_match_scrutinee_32"}},"else":[{"kind":"Literal","value":{"type":"int","value":0}}],"kind":"If","then":[{"inits":[{"arguments":[{"kind":"Literal","value":{"type":"string","value":"StringBox"}}],"kind":"MethodCall","method":"as","object":{"kind":"Variable","name":"__ny_match_scrutinee_32"}}],"kind":"Local","variables":["s"]},{"condition":{"kind":"BinaryOp","left":{"arguments":[],"kind":"MethodCall","method":"length","object":{"kind":"Variable","name":"s"}},"op":">","right":{"kind":"Literal","value":{"type":"int","value":3}}},"else":[{"kind":"Literal","value":{"type":"int","value":0}}],"kind":"If","then":[{"kind":"Literal","value":{"type":"int","value":1}}]}]}]}],"kind":"Local","variables":["r"]},{"expression":{"kind":"Variable","name":"r"},"kind":"Print"}]}

tools/test/golden/macro/match_guard_type_basic_min_user_macro_golden.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+root=$(cd "$(dirname "$0")"/../../../.. && pwd)
+bin="$root/target/release/nyash"
+src="apps/tests/macro/match/guard_type_basic_min.nyash"
+golden="$root/tools/test/golden/macro/match_guard_type_basic_min.expanded.json"
+
+if [ ! -x "$bin" ]; then
+  echo "nyash binary not found at $bin; build first (cargo build --release)" >&2
+  exit 1
+fi
+
+export NYASH_MACRO_ENABLE=1
+
+normalize_json() {
+  python3 -c 'import sys,json; print(json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(",",":")))'
+}
+
+out_raw=$("$bin" --dump-expanded-ast-json "$src")
+out_norm=$(printf '%s' "$out_raw" | normalize_json)
+gold_norm=$(normalize_json < "$golden")
+
+if [ "$out_norm" != "$gold_norm" ]; then
+  echo "Golden mismatch (match guard type basic min)" >&2
+  diff -u <(echo "$out_norm") <(echo "$gold_norm") || true
+  exit 2
+fi
+
+echo "[OK] golden match guard type basic min matched"