[clang-tools-extra] [clang-tidy] introduce a must use check (PR #76101)

[Tyler Rockwood via cfe-commits]

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@@ -0,0 +1,48 @@
+// RUN: %check_clang_tidy %s misc-must-use %t -- \
+// RUN:       -config="{CheckOptions: [{key: 'misc-must-use.Types', value: '::async::Future'}]}"
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rockwotj wrote:

Done.

https://github.com/llvm/llvm-project/pull/76101