ClangCodeModel: Fix another false positive

... in in output argument highlighting.

Fixes: QTCREATORBUG-27368
Change-Id: I7549fd5c69bfebd0eeda24760d3bf96f2e652c43
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/clangcodemodel/clangdclient.cpp

@@ -2757,6 +2757,8 @@ static void semanticHighlighter(QFutureInterface<HighlightingResult> &future,
 
             if (it->kind() == "Lambda")
                 return false;
+            if (it->kind() == "BinaryOperator")
+                return false;
             if (it->hasConstType())
                 return false;