CPlusPlus: Remove foreach / Q_FOREACH usage

Task-number: QTCREATORBUG-27464
Change-Id: Idbcedd9f9a2e148cb18e53c9dc0b82b52b372d64
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/libs/cplusplus/pp-engine.cpp

@@ -1824,7 +1824,8 @@ void Preprocessor::handleDefineDirective(PPToken *tk)
         if (macro.isFunctionLike()) {
             macroId += '(';
             bool fst = true;
-            foreach (const QByteArray &formal, macro.formals()) {
+            const QVector<QByteArray> formals = macro.formals();
+            for (const QByteArray &formal : formals) {
                 if (! fst)
                     macroId += ", ";
                 fst = false;