[llvm] [llvm][Support] Add YAMLGenerateSchema for producing YAML schemas (PR #133284)

[Scott Linder via llvm-commits]

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@@ -0,0 +1,400 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 LLVM_SUPPORT_YAMLGENERATE_SCHEMA_H
+#define LLVM_SUPPORT_YAMLGENERATE_SCHEMA_H
+
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/YAMLTraits.h"
+
+namespace llvm {
+
+namespace json {
+class Value;
+}
+
+namespace yaml {
+
+class GenerateSchema : public IO {
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slinder1 wrote:

Nit: can this also be `final`?

https://github.com/llvm/llvm-project/pull/133284