core: Fix TestContext2Apply_moduleOrphanProvider

We now always expect to find a provider configuration in state. If not,
we assume a module-local one, which is not what this test was trying to
test.

terraform/context_apply_test.go

@@ -2867,6 +2867,7 @@ func TestContext2Apply_moduleOrphanProvider(t *testing.T) {
 						Primary: &InstanceState{
 							ID: "bar",
 						},
+						Provider: "provider.aws",
 					},
 				},
 			},