src/vs/workbench/services/dialogs/browser/simpleFileDialog.ts/SimpleFileDialog/basenameWithTrailingSlash
class SimpleFileDialog:	private basenameWithTrailingSlash(fullPath: URI): string {
		const child = this.pathFromUri(fullPath, true);
		const parent = this.pathFromUri(resources.dirname(fullPath), true);
		return child.substring(parent.length);
	}