[clang-tools-extra] [llvm] [llvm] add support for mustache templating language (PR #105893)

[Aaron Ballman via llvm-commits]

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@@ -0,0 +1,114 @@
+//===--- Mustache.h ---------------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// Implementation of the Mustache templating language supports version 1.4.2
+// currently relies on llvm::json::Value for data input
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AaronBallman wrote:

```suggestion
// currently relies on llvm::json::Value for data input.
```

https://github.com/llvm/llvm-project/pull/105893