Fix br_on_exn handling in ReFinalize (#2854)

In `ReFinalize`'s branch handling, `updateBreakValueType` is supposed to
be executed only when the branch itself is not replaced with its
argument (because it is guaranteed not to be taken).

Also this moves `visitBrOnExn` from `RuntimeExpressionRunner` to its
base class `ExpressionRunner`, because it does not depend on anything on
the runtime instance to work. This is effectively NFC for now because
`visitTry` is still only implemented only in `RuntimeExpressionRunner`
because it relies on multivalue handling of it, and without it we cannot
create a valid exception `Literal`.

0 files changed, 0 insertions, 0 deletions