Qml JS Inspector: Show "no context" element in crumble path when empty

src/plugins/qmljsinspector/qmljscontextcrumblepath.cpp

@@ -7,9 +7,10 @@ namespace QmlJSInspector {
 namespace Internal {
 
 ContextCrumblePath::ContextCrumblePath(QWidget *parent)
-    : CrumblePath(parent)
+    : CrumblePath(parent), m_isEmpty(true)
 {
     setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+    updateContextPath(QStringList());
 }
 
 ContextCrumblePath::~ContextCrumblePath()
@@ -23,6 +24,11 @@ void ContextCrumblePath::updateContextPath(const QStringList &path)
     foreach(const QString &pathPart, path) {
         pushElement(pathPart);
     }
+
+    m_isEmpty = path.isEmpty();
+    if (m_isEmpty) {
+        pushElement(tr("[no context]"));
+    }
 }
 
 } // namespace Internal