phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

examples/jit_plugin_invoke_global_helper.hako

@@ -0,0 +1,29 @@
+// Global helper JIT smoke: avoid static box method resolution
+// Build plugin:
+//   (cd plugins/nyash-array-plugin && cargo build --release)
+// Run:
+//   NYASH_USE_PLUGIN_BUILTINS=1 NYASH_JIT_EXEC=1 NYASH_JIT_THRESHOLD=1 \
+//   NYASH_JIT_SHIM_TRACE=1 NYASH_CLI_VERBOSE=1 \
+//   ./target/release/nyash --backend vm examples/jit_plugin_invoke_global_helper.hako
+
+helper(arr) {
+  // JIT target: plugin_invoke on parameter only
+  return arr.length()
+}
+
+main() {
+  local a, debug
+  debug = new DebugBox()
+  debug.tracePluginCalls(true)
+
+  a = new ArrayBox()
+  a.push(1)
+  a.push(2)
+  a.push(3)
+
+  // Call global helper (should become a distinct MIR function)
+  print(helper(a))
+  // Dump recent JIT shim events
+  print(debug.getJitEvents())
+}
+