QML Observer: Refresh debug id's when new objects are created

Previously, the user had to navigate to the context of a qml item in
order to edit its source code in Live Preview mode. This change tells
the client to update when new objects are created on server-side, and
makes the editing possible without having to manually trigger updates.

src/plugins/qmljsinspector/qmljslivetextpreview.cpp

@@ -40,6 +40,8 @@
 #include <qmljs/qmljsdelta.h>
 #include <qmljs/parser/qmljsast_p.h>
 #include <extensionsystem/pluginmanager.h>
+#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/project.h>
 
 #include <coreplugin/icore.h>
 #include <coreplugin/editormanager/ieditor.h>
@@ -532,6 +534,12 @@ void QmlJSLiveTextPreview::documentChanged(QmlJS::Document::Ptr doc)
     if (!core->hasContext(dbgcontext))
         return;
 
+    if (ProjectExplorer::Project *debugProject = Inspector::instance()->debugProject()) {
+        QStringList files = debugProject->files(ProjectExplorer::Project::ExcludeGeneratedFiles);
+        if (!files.contains(doc->fileName()))
+            return;
+    }
+
     bool experimentalWarningShown = false;
 
     if (m_applyChangesToQmlObserver) {