[clang-tools-extra] [clang-tidy] Enable `modernize-return-braced-init-list`'s tests in C++11 (PR #158196)

[Carlos Galvez via cfe-commits]

carlosgalvezp wrote:


> It will be c++11-or-later by default:

That's sounds very fragile, if the standard is important, the test should be explicit about it. 

Otherwise anyone can bump that standard in run-clang-tidy.py in the future to something else and suddenly this test no longer tests C++11. CI won't catch that.






https://github.com/llvm/llvm-project/pull/158196