[arm64] Fix finally abort

[arm64] Fix finally abort

A try finally set looks like :

try:
   ...
   call finally
E: exit try_block

finally:
   ...
   call E

If we get aborted in the finally block, instead of calling to E, we call to a handler block trampoline which will throw the exception using a context that has the ip at E (since we need to execute the finally block first). We need to make sure that E is not logically part of the try block, otherwise we will end up calling the finally block again when unwinding the stack.