[clang-tools-extra] [clang-doc] Add HTMLMustacheGenerator.cpp (PR #138060)

[Daniel Thornburgh via cfe-commits]

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@@ -535,6 +535,8 @@ struct ClangDocContext {
   // JavaScript files that will be imported in all HTML files.
   std::vector<std::string> JsScripts;
   StringRef Base;
+  // Mustache Template files
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mysterymath wrote:

This is a map from strings to strings. What is the semantics of that map? It's not obvious to me from this change, and it should probably be part of the comment.

https://github.com/llvm/llvm-project/pull/138060