Add instantiate method on ParameterizedType and InterfaceType.

pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart

Index: pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart
diff --git a/pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart b/pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart
index 5db934d2841cac8c5818635073b81f399597d37c..3d4f6ae0270e9c053069a0c83b8074d3bc18f7db 100644
--- a/pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart
+++ b/pkg/analysis_server/test/src/utilities/change_builder_dart_test.dart
@@ -60,8 +60,8 @@ class DartEditBuilderImplTest extends AbstractContextTest {
     DartChangeBuilderImpl builder = new DartChangeBuilderImpl(context);
     builder.addFileEdit(source, 1, (DartFileEditBuilderImpl builder) {
       builder.addInsertion(0, (DartEditBuilder builder) {
-        builder.writeClassDeclaration('C',
-            interfaces: [declaration.element.type]);
+        builder
+            .writeClassDeclaration('C', interfaces: [declaration.element.type]);
       });
     });
     SourceEdit edit = getEdit(builder);
@@ -549,7 +549,7 @@ f(int i, String s) {
     builder.addFileEdit(source, 1, (DartFileEditBuilderImpl builder) {
       builder.addInsertion(content.length - 1, (DartEditBuilder builder) {
         builder
-            .writeType(classB.element.type.substitute4([classA.element.type]));
+            .writeType(classB.element.type.instantiate([classA.element.type]));
       });
     });
     SourceEdit edit = getEdit(builder);