[clang-tools-extra] Add clang-tidy check readability-math-missing-parentheses (PR #84481)

[Julian Schmidt via cfe-commits]

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@@ -0,0 +1,74 @@
+// RUN: %check_clang_tidy %s readability-math-missing-parentheses %t
+
+// FIXME: Add something that triggers the check here.
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5chmidti wrote:

Left-over from the check template

https://github.com/llvm/llvm-project/pull/84481