core: move close transforms after flatten and destroy transforms

fixes destroy-related failures introduced by the close transforms

terraform/graph_builder.go

@@ -117,12 +117,10 @@ func (b *BuiltinGraphBuilder) Steps(path []string) []GraphTransformer {
 		&MissingProviderTransformer{Providers: b.Providers},
 		&ProviderTransformer{},
 		&DisableProviderTransformer{},
-		&CloseProviderTransformer{},
 
 		// Provisioner-related transformations
 		&MissingProvisionerTransformer{Provisioners: b.Provisioners},
 		&ProvisionerTransformer{},
-		&CloseProvisionerTransformer{},
 
 		// Run our vertex-level transforms
 		&VertexTransformer{
@@ -166,6 +164,10 @@ func (b *BuiltinGraphBuilder) Steps(path []string) []GraphTransformer {
 				Then: &PruneDestroyTransformer{Diff: b.Diff, State: b.State},
 			}),
 
+			// Insert nodes to close opened plugin connections
+			&CloseProviderTransformer{},
+			&CloseProvisionerTransformer{},
+
 			// Make sure we have a single root after the above changes.
 			// This is the 2nd root transformer. In practice this shouldn't
 			// actually matter as the RootTransformer is idempotent.