[clang] [clang][Interp] Emit dummy values for unknown C variables (PR #66749)

[Aaron Ballman via cfe-commits]

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@@ -208,7 +208,7 @@ class Program final {
   llvm::DenseMap<const RecordDecl *, Record *> Records;
 
   /// Dummy parameter to generate pointers from.
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AaronBallman wrote:

The comment is no longer quite correct.

https://github.com/llvm/llvm-project/pull/66749