Reports 'fall-through' in a switch statement.
Fall-through is defined to occur when a series of executable statements after a case label is not guaranteed
to transfer control before the next case label. For example if the branch is missing a break statement.
In that case, control falls through to the statements after
that switch label, even though the switch expression does not equal
the value of the fallen-through label. While occasionally intended, this construction is confusing, and is often the result of a typo.
This inspection ignores any fall-through commented with a text matching the regex pattern (?i)falls?\s*thro?u
.