[clang-tools-extra] [clang-tidy] add readability-redundant-parentheses (PR #159911)

[Carlos Galvez via cfe-commits]

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@@ -0,0 +1,58 @@
+// RUN: %check_clang_tidy %s readability-redundant-parentheses %t
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carlosgalvezp wrote:

I think this check should not specify any default since it just requires "CplusPlus", and instead we should downgrade check_clang_tidy to c++98-or-later.

https://github.com/llvm/llvm-project/pull/159911