[clang] [clang][test] add TestLanguage.def to specify all tested language versions (PR #94243)

[Julian Schmidt via cfe-commits]

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@@ -0,0 +1,39 @@
+
+//===-- TestLanguage.def - Language Versions for Testing --------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TESTLANGUAGE
+#error "TESTLANGUAGE must be defined before including this file"
+#endif
+
+#ifndef TESTLANGUAGE_C
+#define TESTLANGUAGE_C TESTLANGUAGE
+#endif
+
+#ifndef TESTLANGUAGE_CXX
+#define TESTLANGUAGE_CXX TESTLANGUAGE
+#endif
+
+TESTLANGUAGE_C(C, 89, c89, 0)
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5chmidti wrote:

done

https://github.com/llvm/llvm-project/pull/94243