Fix summarization of inferred types which are function-typed params of typedefs.

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/dart/element/element.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
@@ skipping 7562 matching lines @@
         ' abstract class D<U, V> { Map<V, U> get v; }',
         className: 'C');
     EntityRef type = getTypeRefForSlot(cls.fields[0].inferredTypeSlot);
     // Check that v has inferred type Map<T, int>.
     checkLinkedTypeRef(type, 'dart:core', 'dart:core', 'Map',
         allowTypeArguments: true, numTypeParameters: 2);
     checkParamTypeRef(type.typeArguments[0], 1);
     checkLinkedTypeRef(type.typeArguments[1], 'dart:core', 'dart:core', 'int');
   }
 
+  test_inferred_type_refers_to_function_typed_param_of_typedef() {
+    if (!strongMode || skipFullyLinkedData) {
+      return;
+    }
+    UnlinkedVariable v = serializeVariableText('''
+typedef void F(int g(String s));
+h(F f) => null;
+var v = h((y) {});
+''');
+    expect(v.initializer.localFunctions, hasLength(1));
+    UnlinkedExecutable closure = v.initializer.localFunctions[0];
+    expect(closure.parameters, hasLength(1));
+    UnlinkedParam y = closure.parameters[0];
+    expect(y.name, 'y');
+    EntityRef typeRef = getTypeRefForSlot(y.inferredTypeSlot);
+    checkLinkedTypeRef(typeRef, null, null, 'F',
+        expectedKind: ReferenceKind.typedef);
+    expect(typeRef.implicitFunctionTypeIndices, [0]);
+  }
+
   test_inferred_type_refers_to_function_typed_parameter_type_generic_class() {
     if (!strongMode || skipFullyLinkedData) {
       return;
     }
     UnlinkedClass cls = serializeClassText(
         'class C<T, U> extends D<U, int> { void f(int x, g) {} }'
         ' abstract class D<V, W> { void f(int x, W g(V s)); }',
         className: 'C');
     EntityRef type =
         getTypeRefForSlot(cls.executables[0].parameters[1].inferredTypeSlot);
@@ skipping 2180 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});
 }