src/vs/editor/common/model/bracketPairsTextModelPart/bracketPairsTree/beforeEditPositionMapper.ts/TextEditInfoCache/constructor
class TextEditInfoCache:	constructor(
		startOffset: Length,
		endOffset: Length,
		textLength: Length,
	) {
		this.endOffsetBeforeObj = lengthToObj(endOffset);
		this.endOffsetAfterObj = lengthToObj(lengthAdd(startOffset, textLength));
		this.offsetObj = lengthToObj(startOffset);
	}