[PATCH] D128113: Clang: fix AST representation of expanded template arguments.

[Matheus Izvekov via Phabricator via cfe-commits]

mizvekov added a comment.

In D128113#3744290 <https://reviews.llvm.org/D128113#3744290>, @alexfh wrote:

> Do you have a practical example that would use the substitution index? I believe you had something in mind before you implemented this patch?

Oh, yes, this is needed for / is going to culminate in the implementation of the project described in https://discourse.llvm.org/t/rfc-improving-diagnostics-with-template-specialization-resugaring/64294/11


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https://reviews.llvm.org/D128113