terraform: convert import graph to use new provider nodes

This uses the new NodeApplyableProvider graph nodes. This will just make
it easier for us in the future to adopt new graph transforms by starting
to use the new ones here.

terraform/graph_builder_import.go

@@ -36,6 +36,14 @@ func (b *ImportGraphBuilder) Steps() []GraphTransformer {
 		mod = module.NewEmptyTree()
 	}
 
+	// Custom factory for creating providers.
+	providerFactory := func(name string, path []string) GraphNodeProvider {
+		return &NodeApplyableProvider{
+			NameValue: name,
+			PathValue: path,
+		}
+	}
+
 	steps := []GraphTransformer{
 		// Create all our resources from the configuration and state
 		&ConfigTransformerOld{Module: mod},
@@ -44,13 +52,11 @@ func (b *ImportGraphBuilder) Steps() []GraphTransformer {
 		&ImportStateTransformer{Targets: b.ImportTargets},
 
 		// Provider-related transformations
-		&MissingProviderTransformer{Providers: b.Providers},
+		&MissingProviderTransformer{Providers: b.Providers, Factory: providerFactory},
 		&ProviderTransformer{},
 		&DisableProviderTransformerOld{},
 		&PruneProviderTransformer{},
-
-		// Insert nodes to close opened plugin connections
-		&CloseProviderTransformer{},
+		&AttachProviderConfigTransformer{Module: mod},
 
 		// Single root
 		&RootTransformer{},