ProjectExplorer: Make sure the working dir is properly expanded

... in the path chooser.

Fixes: QTCREATORBUG-26274
Change-Id: I4aa920888b9bef2820ed883e1f34a5c670a545d6
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -233,6 +233,8 @@ bool RunConfiguration::isEnabled() const
 
 QWidget *RunConfiguration::createConfigurationWidget()
 {
+    if (const auto wdAspect = aspect<WorkingDirectoryAspect>())
+        wdAspect->setMacroExpanderProvider([this] { return &m_expander; });
     Layouting::Form builder;
     for (BaseAspect *aspect : qAsConst(m_aspects)) {
         if (aspect->isVisible())