Fix #13406 FP missingOverride with Q_OBJECT macro (#7090)

Author: chrchr-github

lib/checkclass.cpp

@@ -3059,6 +3059,8 @@ static std::vector<DuplMemberFuncInfo> getDuplInheritedMemberFunctionsRecursive(
         for (const Function& classFuncIt : typeCurrent->classScope->functionList) {
             if (classFuncIt.isImplicitlyVirtual())
                 continue;
+            if (classFuncIt.tokenDef->isExpandedMacro())
+                continue;
             for (const Function& parentClassFuncIt : parentClassIt.type->classScope->functionList) {
                 if (classFuncIt.name() == parentClassFuncIt.name() &&
                     (parentClassFuncIt.access != AccessControl::Private || !skipPrivate) &&
@@ -3200,6 +3202,8 @@ void CheckClass::checkOverride()
         for (const Function &func : classScope->functionList) {
             if (func.hasOverrideSpecifier() || func.hasFinalSpecifier())
                 continue;
+            if (func.tokenDef->isExpandedMacro())
+                continue;
             const Function *baseFunc = func.getOverriddenFunction();
             if (baseFunc)
                 overrideError(baseFunc, &func);

test/cfg/qt.cpp

@@ -804,3 +804,11 @@ const QString& unassignedVariable_static_QString() // #12935
     static QString qs;
     return qs;
 }
+
+struct BQObject_missingOverride { // #13406
+    Q_OBJECT
+};
+
+struct DQObject_missingOverride : BQObject_missingOverride {
+    Q_OBJECT
+};