carbon-lang/executable_semantics/testdata/pattern_variable_fail.6c

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

fn main() -> Int {
  Int : x;  // error
  return 1;
}