[clang-tools-extra] [clang-tidy] Add new check readability-trailing-comma (PR #173669)

[via cfe-commits]

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@@ -0,0 +1,11 @@
+// RUN: %check_clang_tidy -std=c++11-or-later %s readability-trailing-comma %t -- \
+// RUN:   -config='{CheckOptions: {readability-trailing-comma.SingleLineCommaPolicy: Ignore, readability-trailing-comma.MultiLineCommaPolicy: Ignore}}'
+
+
+// CHECK-MESSAGES: warning: The check 'readability-trailing-comma' will not perform any analysis because 'SingleLineCommaPolicy' and 'MultiLineCommaPolicy' are both set to 'Ignore'. [clang-tidy-config]
+
+enum E1 {
+  A
+};
+
+enum E2 { B, };
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EugeneZelenko wrote:

Please add newline.

https://github.com/llvm/llvm-project/pull/173669