assertWideChars(6, 5, x);
x = assertReversibleAndReturnX(lineInfo.line(), 7);
assertWideChars(7, 5, x);
// Check the new line that was created works right
lineInfo.moveToNext();
x = assertReversibleAndReturnX(lineInfo.line(), 1);
assertWideChars(1, 0, x);
x = assertReversibleAndReturnX(lineInfo.line(), 2);
assertWideChars(2, 0, x);
x = assertReversibleAndReturnX(lineInfo.line(), 3);