[clang] [clang] Enable C++17 relaxed template template argument matching by default (PR #89807)

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eaeltsin wrote:

Thanks @mizvekov ! This explanation sheds some light on why the original tests diverge in behavior so much, will look further.

Is there a way to dump which template was picked for which instantiation?

(I tried templight but it doesn't seem to handle this case yet, for me it went in one step through the recursive instantiation that hits the depth limit).


https://github.com/llvm/llvm-project/pull/89807