From 8ddfcbd396f19aaf7ecafb9409f10d443af412e7 Mon Sep 17 00:00:00 2001
From: Martin Kustermann <kustermann@google.com>
Date: Mon, 26 May 2025 12:16:21 -0700
Subject: [PATCH] [dart2wasm] Use `String` as return type of
 `Record_<X>.toString()`

This will ensure selector computation for `toString()` selector will
use more precise type.

Change-Id: I668197e58d25ac225fd8428dfaa5093e9090de2e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/431041
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
---
 pkg/dart2wasm/lib/record_class_generator.dart | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkg/dart2wasm/lib/record_class_generator.dart b/pkg/dart2wasm/lib/record_class_generator.dart
index e5f6c4a2dd6..4c9ada35b01 100644
--- a/pkg/dart2wasm/lib/record_class_generator.dart
+++ b/pkg/dart2wasm/lib/record_class_generator.dart
@@ -395,7 +395,8 @@ class _RecordClassGenerator {
         Procedure(
           Name('toString', library),
           ProcedureKind.Method,
-          FunctionNode(ReturnStatement(stringExpression)),
+          FunctionNode(ReturnStatement(stringExpression),
+              returnType: coreTypes.stringNonNullableRawType),
           fileUri: library.fileUri,
         ),
         coreTypes);