gui/test/testcppchecklibrarydata.cpp: fixed constParameterReference selfcheck warning

Author: firewave

gui/test/cppchecklibrarydata/testcppchecklibrarydata.cpp

@@ -623,7 +623,7 @@ void TestCppcheckLibraryData::loadCfgFile(const QString &filename, CppcheckLibra
     }
 }
 
-void TestCppcheckLibraryData::saveCfgFile(const QString &filename, CppcheckLibraryData &data)
+void TestCppcheckLibraryData::saveCfgFile(const QString &filename, const CppcheckLibraryData &data)
 {
     QFile file(filename);
     QVERIFY(file.open(QIODevice::WriteOnly | QIODevice::Text));

gui/test/cppchecklibrarydata/testcppchecklibrarydata.h

@@ -46,7 +46,7 @@ private slots:
 
 private:
     static void loadCfgFile(const QString &filename, CppcheckLibraryData &data, QString &res, bool removeFile = false);
-    static void saveCfgFile(const QString &filename, CppcheckLibraryData &data);
+    static void saveCfgFile(const QString &filename, const CppcheckLibraryData &data);
 
     // cppcheck-suppress naming-privateMemberVariable - TODO: fix this
     CppcheckLibraryData libraryData;