src/vs/workbench/contrib/files/browser/editors/textFileEditor.ts/TextFileEditor/onDidFilesChange
class TextFileEditor:	private onDidFilesChange(e: FileChangesEvent): void {
		const deleted = e.rawDeleted;
		if (deleted) {
			for (const [resource] of deleted) {
				this.clearTextEditorViewState(resource);
			}
		}
	}