[roll] Roll fuchsia [gidl] Refactor handles

This CL refactors the way GIDL implements tests for handles:

* Rename rightsConfiguration to allowedFeatures, and pass it in a
  context struct (will be used for more things in a follow-up CL).

* Rename HandleWithRights to RestrictedHandle, as it represents the
  `restrict(#n, rights: ...)` function. Also require a `type` argument.
  Before it wasn't parsed, so the type was always ObjectTypeNone.

* Map #n to ir.Handle and restrict(...) to ir.RestrictedHandle, rather
  than always using the latter with ObjectTypeNone/SameRights defaults.
  This means RestrictedHandle only now appears in decode_success.

* Introduce ir.AnyHandle to abstract ir.Handle and ir.RestrictedHandle.
  Now value builders only see ir.Handle, while equality builders see
  both, and can use AnyHandle to avoid code duplication.

* Disallow `restrict(#n, rights: same_rights)`. We should always be able
  to assert on the exact set of rights (or just use `#n` otherwise).

* Tighten mixer.HandleDecl conforms(), comparing potentially all three
  sets of type and rights (FIDL, handle_defs, restrict).

Test: go test go.fuchsia.dev/fuchsia/tools/fidl/gidl/...
Test: fx test fidl_{rust,{,hl,ll}cpp,go}_conformance fidl-c-conformance dart-bindings-test
Multiply: host_x64/fidl-c-conformance-host-tests: 100
Multiply: host_x64/fidl_rust_conformance_tests: 100
Multiply: host_x64/fidl_cpp_conformance_tests: 100
Multiply: host_x64/fidl_hlcpp_conformance_tests: 100
Multiply: host_x64/fidl_llcpp_conformance_tests: 100
Multiply: host_x64/obj/src/tests/fidl/fidl_go_conformance/fidl_go_conformance_tests.sh: 100
Original-Bug: 116269
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/781764
Original-Revision: a05fb7fdd5684dffee7a77cf68dfe5c1948937b7
GitOrigin-RevId: 97261f30506ea23a89df98424db4069e530a629e
Change-Id: I0f170c09716de8b216fba89bc38c3793aba26075