src/vs/editor/common/core/textChange.ts/TextChange/write
class TextChange:	public write(b: Uint8Array, offset: number): number {
		buffer.writeUInt32BE(b, this.oldPosition, offset); offset += 4;
		buffer.writeUInt32BE(b, this.newPosition, offset); offset += 4;
		offset = TextChange._writeString(b, this.oldText, offset);
		offset = TextChange._writeString(b, this.newText, offset);
		return offset;
	}