[PATCH] D55433: [clang-tidy] Adding a new modernize use nodiscard checker

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Comment at: docs/clang-tidy/checks/modernize-use-nodiscard.rst:23
+Such functions have no means of altering any state or passing values other than
+via the return type. Unless the member functions are altering state via some external call (e.g. I/O).
+
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noted > 80 char line will correct next patch


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  https://reviews.llvm.org/D55433/new/

https://reviews.llvm.org/D55433