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

[Vlad Serebrennikov via cfe-commits]

Endilll wrote:

@bgra8 Your reduction has names replaced by the tool. This is quite hard to work with. Can you reduce again, but with renaming passes disabled?
I uploaded your reproducer to CE: https://godbolt.org/z/9PK1oPoPW

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