ofAddress factory of function pointer type is wrong for struct returns

For the following:

    typedef struct { int x; } (*CB)(void);

Jextract generates this:

    static CB ofAddress(MemoryAddress addr, MemorySession session) {
        MemorySegment symbol = MemorySegment.ofAddress(addr, 0, session);
        return () -> {
            try {
                return (java.lang.foreign.MemorySegment)constants$0.CB$MH.invokeExact((Addressable)symbol);
            } catch (Throwable ex$) {
                throw new AssertionError("should not reach here", ex$);
            }
        };
    }

Which is incorrect, since it doesn't take the leading SegmentAllocator paramert into account.

Invoking apply will result in WrongMethodTypeException:

    CB.ofAddress(MemoryAddress.NULL, MemorySession.openImplicit()).apply();


| Exception java.lang.AssertionError: should not reach here
| at CB.lambda$ofAddress$0 (CB.java:22)
| at (#5:1)
| Caused by: java.lang.invoke.WrongMethodTypeException: expected (Addressable,SegmentAllocator)MemorySegment but found (Addressable)MemorySegment
| at Invokers.newWrongMethodTypeException (Invokers.java:523)
| at Invokers.checkExactType (Invokers.java:532)
| at CB.lambda$ofAddress$0 (CB.java:20)
| ...