suggest method references in named expressions

pkg/analysis_server/test/services/completion/completion_target_test.dart

 // Copyright (c) 2014, 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 test.services.completion.target;
 
 import 'package:analysis_server/src/provisional/completion/dart/completion_target.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:test/test.dart';
@@ skipping 56 matching lines @@
     addTestSource('main() {new Foo(a,^)}');
     assertTarget(')', '(a)', argIndex: 1);
   }
 
   test_ArgumentList_InstanceCreationExpression_functionArg2() {
     // ArgumentList  InstanceCreationExpression  Block
     addTestSource('main() {new B(^)} class B{B(f()){}}');
     assertTarget(')', '()', argIndex: 0, isFunctionalArgument: true);
   }
 
+  test_ArgumentList_InstanceCreationExpression_functionArg3() {
+    // ArgumentList  InstanceCreationExpression  Block
+    addTestSource('main() {new B(1, f: ^)} class B{B(int i, {f()}){}}');
+    assertTarget('', 'f: ', argIndex: 1, isFunctionalArgument: true);
+  }
+
   test_ArgumentList_MethodInvocation() {
     // ArgumentList  MethodInvocation  Block
     addTestSource('main() {foo(^)}');
     assertTarget(')', '()', argIndex: 0);
   }
 
   test_ArgumentList_MethodInvocation2() {
     // ArgumentList  MethodInvocation  Block
     addTestSource('main() {foo(^n)}');
     assertTarget('n', '(n)', argIndex: 0);
@@ skipping 22 matching lines @@
     addTestSource('main() {foo(^)} foo(f()) {}');
     assertTarget(')', '()', argIndex: 0, isFunctionalArgument: true);
   }
 
   test_ArgumentList_MethodInvocation_functionArg2() {
     // ArgumentList  MethodInvocation  Block
     addTestSource('main() {new B().boo(^)} class B{boo(f()){}}');
     assertTarget(')', '()', argIndex: 0, isFunctionalArgument: true);
   }
 
+  test_ArgumentList_MethodInvocation_functionArg3() {
+    // ArgumentList  MethodInvocation  Block
+    addTestSource('main() {foo(f: ^)} foo({f()}) {}');
+    assertTarget('', 'f: ', argIndex: 0, isFunctionalArgument: true);
+  }
+
+  test_ArgumentList_MethodInvocation_functionArg4() {
+    // ArgumentList  MethodInvocation  Block
+    addTestSource('main() {new B().boo(f: ^)} class B{boo({f()}){}}');
+    assertTarget('', 'f: ', argIndex: 0, isFunctionalArgument: true);
+  }
+
   test_AsExpression_identifier() {
     // SimpleIdentifier  TypeName  AsExpression
     addTestSource('class A {var b; X _c; foo() {var a; (a^ as String).foo();}');
     assertTarget('a as String', '(a as String)');
   }
 
   test_AsExpression_keyword() {
     // SimpleIdentifier  TypeName  AsExpression
     addTestSource('class A {var b; X _c; foo() {var a; (a ^as String).foo();}');
     assertTarget('as', 'a as String');
@@ skipping 434 matching lines @@
     addTestSource('main() {int b^ = 1;}');
     assertTarget('b = 1', 'int b = 1');
   }
 
   test_VariableDeclaration_lhs_identifier_before() {
     // VariableDeclaration  VariableDeclarationList
     addTestSource('main() {int ^b = 1;}');
     assertTarget('b = 1', 'int b = 1');
   }
 }