Keep all type arguments in summaries - dynamic or not.

pkg/analyzer/lib/src/summary/summarize_ast.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/type.dart' show DartType;
@@ skipping 775 matching lines @@
       } else if (identifier is PrefixedIdentifier) {
         int prefixIndex = prefixIndices.putIfAbsent(identifier.prefix.name,
             () => serializeSimpleReference(identifier.prefix.name));
         b.reference =
             serializeReference(prefixIndex, identifier.identifier.name);
       } else {
         throw new StateError(
             'Unexpected identifier type: ${identifier.runtimeType}');
       }
       if (typeArguments != null) {
-        // Trailing type arguments of type 'dynamic' should be omitted.
-        NodeList<TypeName> args = typeArguments.arguments;
-        int numArgsToSerialize = args.length;
-        while (
-            numArgsToSerialize > 0 && isDynamic(args[numArgsToSerialize - 1])) {
-          --numArgsToSerialize;
-        }
-        if (numArgsToSerialize > 0) {
-          List<EntityRefBuilder> serializedArguments = <EntityRefBuilder>[];
-          for (int i = 0; i < numArgsToSerialize; i++) {
-            serializedArguments.add(serializeTypeName(args[i]));
-          }
-          b.typeArguments = serializedArguments;
-        }
+        b.typeArguments =
+            typeArguments.arguments.map(serializeTypeName).toList();
       }
       return b;
     }
   }
 
   /**
    * Serialize a type name (which might be defined in a nested scope, at top
    * level within this library, or at top level within an imported library) to
    * a [EntityRef].  Note that this method does the right thing if the
    * name doesn't refer to an entity other than a type (e.g. a class member).
@@ skipping 460 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }