src/vs/editor/browser/widget/codeEditorWidget.ts/CodeEditorWidget/_revealLine
class CodeEditorWidget:	private _revealLine(lineNumber: number, revealType: VerticalRevealType, scrollType: editorCommon.ScrollType): void {
		if (typeof lineNumber !== 'number') {
			throw new Error('Invalid arguments');
		}

		this._sendRevealRange(
			new Range(lineNumber, 1, lineNumber, 1),
			revealType,
			false,
			scrollType
		);
	}