The generated code for jump-on-strict-not-equal-undefined used the
same logic (but with inverted conditions) as the equal case. For
equality, one can jump to else if the value parts are not the same.
So, for not-equal, if the value parts are the same, it would jump
to the else block if they are the same. Meaning, an encoded int
value of 0 (which is strict-not-equal to undefined) would end up
being evaluated as equal.
Task-number: QTBUG-66832
Change-Id: Id27bb44eccbf39608ae8cebab634c8bcd4c8adfc
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
e2218f8b5c