add completion in type argument list

pkg/analysis_server/test/services/completion/completion_test_util.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.util;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' as protocol
     show Element, ElementKind;
@@ skipping 3382 matching lines @@
   test_TopLevelVariableDeclaration_untyped_name() {
     // SimpleIdentifier  VariableDeclaration  VariableDeclarationList
     // TopLevelVariableDeclaration
     addTestSource('class A {} var ^');
     computeFast();
     return computeFull((bool result) {
       assertNoSuggestions();
     });
   }
 
+  test_TypeArgumentList() {
+    // SimpleIdentifier  BinaryExpression  ExpressionStatement
+    addSource('/testA.dart', '''
+      class C1 {int x;}
+      F1() => 0;
+      typedef String T1(int blat);''');
+    addTestSource('''
+      import "/testA.dart";'
+      class C2 {int x;}
+      F2() => 0;
+      typedef int T2(int blat);
+      class C<E> {}
+      main() { C<^> c; }''');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset);
+      expect(request.replacementLength, 0);
+      assertSuggestImportedClass('Object');
+      assertSuggestImportedClass('C1');
+      assertSuggestImportedFunctionTypeAlias('T1', 'String');
+      assertSuggestLocalClass('C2');
+      assertSuggestLocalFunctionTypeAlias('T2', 'int');
+      assertNotSuggested('F1');
+      assertNotSuggested('F2');
+    });
+  }
+
+  test_TypeArgumentList2() {
+    // TypeName  TypeArgumentList  TypeName
+    addSource('/testA.dart', '''
+      class C1 {int x;}
+      F1() => 0;
+      typedef String T1(int blat);''');
+    addTestSource('''
+      import "/testA.dart";'
+      class C2 {int x;}
+      F2() => 0;
+      typedef int T2(int blat);
+      class C<E> {}
+      main() { C<C^> c; }''');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset - 1);
+      expect(request.replacementLength, 1);
+      assertSuggestImportedClass('C1');
+      assertSuggestLocalClass('C2');
+    });
+  }
+
   test_VariableDeclaration_name() {
     // SimpleIdentifier  VariableDeclaration  VariableDeclarationList
     // VariableDeclarationStatement  Block
     addSource('/testB.dart', '''
       lib B;
       foo() { }
       class _B { }
       class X {X.c(); X._d(); z() {}}''');
     addTestSource('''
       import "/testB.dart";
@@ skipping 68 matching lines @@
       assertNotSuggested('bar2');
       assertNotSuggested('_B');
       assertSuggestLocalClass('Y');
       assertSuggestLocalClass('C');
       assertSuggestLocalVariable('f', null);
       assertNotSuggested('x');
       assertNotSuggested('e');
     });
   }
 }