[clang-tools-extra] [clang-tidy]bugprone-unused-return-value ignore `++` and `--` operator overloading (PR #84922)

[Congcong Cai via cfe-commits]

================
@@ -169,16 +176,13 @@ void UnusedReturnValueCheck::registerMatchers(MatchFinder 
*Finder) {
           callee(functionDecl(
               // Don't match void overloads of checked functions.
               unless(returns(voidType())),
-              // Don't match copy or move assignment operator.
-              unless(cxxMethodDecl(isOperatorOverloading(
-                  {OO_Equal, OO_PlusEqual, OO_MinusEqual, OO_StarEqual,
-                   OO_SlashEqual, OO_PercentEqual, OO_CaretEqual, OO_AmpEqual,
-                   OO_PipeEqual, OO_LessLessEqual, OO_GreaterGreaterEqual}))),
               anyOf(
                   isInstantiatedFrom(
                       matchers::matchesAnyListedName(CheckedFunctions)),
                   returns(hasCanonicalType(hasDeclaration(namedDecl(
-                      
matchers::matchesAnyListedName(CheckedReturnTypes)))))))))
+                      
matchers::matchesAnyListedName(CheckedReturnTypes)))))))),
+          // Don't match copy or move assignment operator.
+          unless(callee(functionDecl(isAssignmentOverloadedOperatorMethod()))))
----------------
HerrCai0907 wrote:

Fixed. I refactor it several times and forget to move it back.

https://github.com/llvm/llvm-project/pull/84922
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