IndirectVarHandle, added by foreign API to support coordinate mapping, value filtering, etc. does not properly implement VarHandle.isAccessModeSupported. It throws an NPE upon invocation, which is most likely undesired.

Example code in JShell (run with --enable-preview):
```java
var lookup = MethodHandles.lookup();
var arrayVh = MethodHandles.arrayElementVarHandle(int[].class);
var addOne = lookup.bind((IntUnaryOperator) a -> a + 1, "applyAsInt", MethodType.methodType(int.class, int.class));
var patchedArrayVh = MethodHandles.filterCoordinates(arrayVh, 1, addOne);
patchedArrayVh.isAccessModeSupported(VarHandle.AccessMode.GET); // NPE
```