src/vs/editor/contrib/quickAccess/browser/gotoLineQuickAccess.ts/AbstractGotoLineQuickAccessProvider/getPickLabel
class AbstractGotoLineQuickAccessProvider:	private getPickLabel(editor: IEditor, lineNumber: number, column: number | undefined): string {

		// Location valid: indicate this as picker label
		if (this.isValidLineNumber(editor, lineNumber)) {
			if (this.isValidColumn(editor, lineNumber, column)) {
				return localize('gotoLineColumnLabel', "Go to line {0} and character {1}.", lineNumber, column);
			}

			return localize('gotoLineLabel', "Go to line {0}.", lineNumber);
		}

		// Location invalid: show generic label
		const position = editor.getPosition() || { lineNumber: 1, column: 1 };
		const lineCount = this.lineCount(editor);
		if (lineCount > 1) {
			return localize('gotoLineLabelEmptyWithLimit', "Current Line: {0}, Character: {1}. Type a line number between 1 and {2} to navigate to.", position.lineNumber, position.column, lineCount);
		}

		return localize('gotoLineLabelEmpty', "Current Line: {0}, Character: {1}. Type a line number to navigate to.", position.lineNumber, position.column);
	}