qmake: Implement QmakeProFile::allProFiles

Change-Id: I9074b398e8b90657125c697cfa366f304c6c9ab5
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/qmakeprojectmanager/qmakeparsernodes.cpp

@@ -1216,6 +1216,17 @@ QString QmakeProFile::displayName() const
     return QmakePriFile::displayName();
 }
 
+QList<QmakeProFile *> QmakeProFile::allProFiles()
+{
+    QList<QmakeProFile *> result = { this };
+    for (QmakePriFile *c : m_children) {
+        auto proC = dynamic_cast<QmakeProFile *>(c);
+        if (proC)
+            result.append(proC->allProFiles());
+    }
+    return result;
+}
+
 bool QmakeProFile::isDebugAndRelease() const
 {
     const QStringList configValues = m_varValues.value(Variable::Config);

src/plugins/qmakeprojectmanager/qmakeparsernodes.h

@@ -273,6 +273,8 @@ public:
     bool isParent(QmakeProFile *node);
     QString displayName() const final;
 
+    QList<QmakeProFile *> allProFiles();
+
     ProjectType projectType() const;
 
     QStringList variableValue(const Variable var) const;