When file is deleted need to marked correctly in the project as removed file

Author: sheetalkamat

src/server/scriptInfo.ts

@@ -477,6 +477,7 @@ namespace ts.server {
                 const existingRoot = p.getRootFilesMap().get(this.path);
                 // detach is unnecessary since we'll clean the list of containing projects anyways
                 p.removeFile(this, /*fileExists*/ false, /*detachFromProjects*/ false);
+                p.onFileAddedOrRemoved();
                 // If the info was for the external or configured project's root,
                 // add missing file as the root
                 if (existingRoot && !isInferredProject(p)) {