Pass type arguments as a list in generic methods invocations

pkg/kernel/lib/transformations/reify/transformation/builder.dart

Index: pkg/kernel/lib/transformations/reify/transformation/builder.dart
diff --git a/pkg/kernel/lib/transformations/reify/transformation/builder.dart b/pkg/kernel/lib/transformations/reify/transformation/builder.dart
index db46b96e814974efc4192db6ad3760183d9bd31b..13af0edbfe825333f52e9265042a0a73b4090c9e 100644
--- a/pkg/kernel/lib/transformations/reify/transformation/builder.dart
+++ b/pkg/kernel/lib/transformations/reify/transformation/builder.dart
@@ -238,12 +238,8 @@ class RuntimeTypeSupportBuilder {
     }
 
     if (type is InterfaceType || type is Supertype) {
-      InterfaceType interfaceType = null;
-      if (type is InterfaceType) {
-        interfaceType = type;
-      } else {
-        interfaceType = (type as Supertype).asInterfaceType;
-      }
+      InterfaceType interfaceType =
+          (type is InterfaceType) ? type : (type as Supertype).asInterfaceType;
       Class cls = interfaceType.classNode;
       Expression declaration = createReference(cls);
       List<DartType> typeArguments = interfaceType.typeArguments;