The support for rethrow_exception was only implemented for uncommon traps. Scopes with rethrow_exception=true can in rare cases be found at places where a safepoint can happen so non-uncommon trap deopts should also support rethrow_exception.

The current support in uncommon_trap_inner uses a pending exception. It should instead use the Unpack_exception exec mode and exception_oop which is the normal way to re-throw an exception during deopt.