src/vs/editor/common/tokens/sparseMultilineTokens.ts/SparseMultilineTokens/applyEdit
class SparseMultilineTokens:	public applyEdit(range: IRange, text: string): void {
		const [eolCount, firstLineLength, lastLineLength] = countEOL(text);
		this.acceptEdit(range, eolCount, firstLineLength, lastLineLength, text.length > 0 ? text.charCodeAt(0) : CharCode.Null);
	}