//
// Copyright 2018-2026 Accenture Technology
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
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//
//! Compile-fail guards for the platform macro surface: every deliberate
//! compile-time error stays a compile-time error with its exact message.
//! `.stderr` files track rustc's error formatting — regenerate with
//! `TRYBUILD=overwrite cargo test --test ui` after a toolchain bump.