src/vs/editor/common/viewLayout/linesLayout.ts/LinesLayout/getFirstWhitespaceIndexAfterLineNumber
class LinesLayout:	public getFirstWhitespaceIndexAfterLineNumber(lineNumber: number): number {
		this._checkPendingChanges();
		lineNumber = lineNumber | 0;

		return this._findFirstWhitespaceAfterLineNumber(lineNumber);
	}