Merge pull request #9073 from zhengbli/i8523

Increase project reference count even when the opened file is referenced by it but not its root

src/server/editorServices.ts

@@ -807,6 +807,7 @@ namespace ts.server {
             else {
                 this.findReferencingProjects(info);
                 if (info.defaultProject) {
+                    info.defaultProject.addOpenRef();
                     this.openFilesReferenced.push(info);
                 }
                 else {