MethodHandle::invokeExact infers wrong return type

The following code runs OK (no exception thrown) in openjdk Red_Hat-20.0.1.0.9-2.rolling.fc38
In Eclipse, it fails with a `WrongMethodTypeException`. The method reference `mh::invokeExact` should take the `void` return type from the implemented interface, but ends up with `Object` instead.

```java
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.function.BiConsumer;

public class TestWrongMethodType {
public static void main(final String[] args) throws Exception {
final var mh = MethodHandles.lookup()
.findVirtual(TestWrongMethodType.class, "setProp", MethodType.methodType(TestWrongMethodType.class, String.class))
.asType(MethodType.methodType(void.class, Object.class, Object.class));
uncheckedBiConsumer(mh::invokeExact).accept(new TestWrongMethodType(), "42");
}

public TestWrongMethodType setProp(final String value) {
return this;
}

public static BiConsumer uncheckedBiConsumer(final CheckedBiConsumer checkedBiConsumer) {
return (x, y) -> {
try {
checkedBiConsumer.accept(x, y);
} catch (final Throwable t) {
throw new RuntimeException(t);
}
};
}

public interface CheckedBiConsumer {
void accept(X x, Y y) throws Throwable;
}
}
```

In Eclipse JDT 3.19.100.v20230605-0440, this fails:

```
Exception in thread "main" java.lang.RuntimeException: java.lang.invoke.WrongMethodTypeException: expected (Object,Object)void but found (Object,Object)Object
at org.jdbi.v3.core.mapper.TestWrongMethodType.lambda$1(TestWrongMethodType.java:37)
at org.jdbi.v3.core.mapper.TestWrongMethodType.main(TestWrongMethodType.java:25)
Caused by: java.lang.invoke.WrongMethodTypeException: expected (Object,Object)void but found (Object,Object)Object
at java.base/java.lang.invoke.Invokers.newWrongMethodTypeException(Invokers.java:523)
at java.base/java.lang.invoke.Invokers.checkExactType(Invokers.java:532)
at org.jdbi.v3.core.mapper.TestWrongMethodType.lambda$1(TestWrongMethodType.java:35)
... 1 more
```