Don't include implicit initializing formal types in summaries.

pkg/analyzer/test/src/summary/summary_test.dart

Index: pkg/analyzer/test/src/summary/summary_test.dart
diff --git a/pkg/analyzer/test/src/summary/summary_test.dart b/pkg/analyzer/test/src/summary/summary_test.dart
index 875d47e0954651bfc865e34cb94ed011ab063568..416978a5b1f774c4be35ac044ff82b616d2e25a4 100644
--- a/pkg/analyzer/test/src/summary/summary_test.dart
+++ b/pkg/analyzer/test/src/summary/summary_test.dart
@@ -1383,7 +1383,7 @@ class C {
         executables:
             serializeClassText('class C { C(this.x); int x; }').executables);
     UnlinkedParam parameter = executable.parameters[0];
-    checkTypeRef(parameter.type, 'dart:core', 'dart:core', 'int');
+    expect(parameter.type, isNull);
     expect(parameter.hasImplicitType, isTrue);
   }
 
@@ -1435,7 +1435,8 @@ class C {
                 'typedef F<T>(T x); class C<X> { C(this.f); F<X> f; }')
             .executables);
     UnlinkedParam parameter = executable.parameters[0];
-    expect(parameter.parameters, hasLength(1));
+    expect(parameter.isFunctionTyped, isFalse);
+    expect(parameter.parameters, isEmpty);
   }
 
   test_constructor_named() {