Issue 28547. Fix for summarizing code with invalid type parameter reference.

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

 // Copyright (c) 2015, 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 analyzer.test.src.summary.summary_common;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/error/listener.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
@@ skipping 9870 matching lines @@
     checkTypeRef(typeRef, 'dart:core', 'dart:core', 'Map',
         numTypeParameters: 2, numTypeArguments: 2);
     checkTypeRef(typeRef.typeArguments[0], 'dart:core', 'dart:core', 'int');
     checkTypeRef(typeRef.typeArguments[1], 'dart:core', 'dart:core', 'Object');
   }
 
   test_type_dynamic() {
     checkDynamicTypeRef(serializeTypeText('dynamic'));
   }
 
+  test_type_invalid_typeParameter_asPrefix() {
+    UnlinkedClass c = serializeClassText('''
+class C<T> {
+  m(T.K p) {}
+}
+''');
+    UnlinkedExecutable m = c.executables[0];
+    expect(m.name, 'm');
+    checkTypeRef(m.parameters[0].type, null, null, 'dynamic');
+  }
+
   test_type_param_codeRange() {
     if (!includeInformative) return;
     UnlinkedClass cls =
         serializeClassText('class A {} class C<T extends A> {}');
     UnlinkedTypeParam typeParameter = cls.typeParameters[0];
     _assertCodeRange(typeParameter.codeRange, 19, 11);
   }
 
   test_type_param_not_shadowed_by_constructor() {
     UnlinkedClass cls =
@@ skipping 772 matching lines @@
 class _PrefixExpectation {
   final ReferenceKind kind;
   final String name;
   final String absoluteUri;
   final String relativeUri;
   final int numTypeParameters;
 
   _PrefixExpectation(this.kind, this.name,
       {this.absoluteUri, this.relativeUri, this.numTypeParameters: 0});
 }