suggest async* and sync* - fixes 24554

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

Index: pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
diff --git a/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart b/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
index 8933b0a1aa0c8f120469119a6feb7c9add9bdf7c..c4d9b8b1ebcd302f0d29cde8b20d3d352021e27a 100644
--- a/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
@@ -333,13 +333,15 @@ class KeywordContributorTest extends DartCompletionContributorTest {
     addTestSource('main() {foo(() ^ {}}}');
     await computeSuggestions();
     assertSuggestKeywords([],
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_anonymous_function_async2() async {
     addTestSource('main() {foo(() a^ {}}}');
     await computeSuggestions();
-    assertSuggestKeywords(STMT_START_OUTSIDE_CLASS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(STMT_START_OUTSIDE_CLASS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_anonymous_function_async3() async {
@@ -348,6 +350,20 @@ class KeywordContributorTest extends DartCompletionContributorTest {
     assertSuggestKeywords([]);
   }
 
+  test_anonymous_function_async4() async {
+    addTestSource('main() {foo(() ^ => 2}}');
+    await computeSuggestions();
+    assertSuggestKeywords([],
+        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+  }
+
+  test_anonymous_function_async5() async {
+    addTestSource('main() {foo(() ^}}');
+    await computeSuggestions();
+    assertSuggestKeywords(EXPRESSION_START_NO_INSTANCE,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
+  }
+
   test_argument() async {
     addTestSource('main() {foo(^);}');
     await computeSuggestions();
@@ -651,35 +667,40 @@ class KeywordContributorTest extends DartCompletionContributorTest {
     addTestSource('main()^');
     await computeSuggestions();
     assertSuggestKeywords(DECLARATION_KEYWORDS,
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_function_async2() async {
     addTestSource('main()^{}');
     await computeSuggestions();
     assertSuggestKeywords([],
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_function_async3() async {
     addTestSource('main()a^');
     await computeSuggestions();
     assertSuggestKeywords(DECLARATION_KEYWORDS,
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_function_async4() async {
     addTestSource('main()a^{}');
     await computeSuggestions();
     assertSuggestKeywords(DECLARATION_KEYWORDS,
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_function_async5() async {
     addTestSource('main()a^ Foo foo;');
     await computeSuggestions();
     assertSuggestKeywords(DECLARATION_KEYWORDS,
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_function_body_inClass_constructorInitializer() async {
@@ -1098,38 +1119,44 @@ main() {
   test_method_async() async {
     addTestSource('class A { foo() ^}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_async2() async {
     addTestSource('class A { foo() ^{}}');
     await computeSuggestions();
     assertSuggestKeywords([],
-        pseudoKeywords: ['async'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['async', 'async*', 'sync*'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_method_async3() async {
     addTestSource('class A { foo() a^}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_async4() async {
     addTestSource('class A { foo() a^{}}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_async5() async {
     addTestSource('class A { foo() ^ Foo foo;}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_async6() async {
     addTestSource('class A { foo() a^ Foo foo;}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_async7() async {
@@ -1142,7 +1169,8 @@ main() {
   test_method_async8() async {
     addTestSource('class A { foo() a^ Foo foo;}');
     await computeSuggestions();
-    assertSuggestKeywords(CLASS_BODY_KEYWORDS, pseudoKeywords: ['async']);
+    assertSuggestKeywords(CLASS_BODY_KEYWORDS,
+        pseudoKeywords: ['async', 'async*', 'sync*']);
   }
 
   test_method_body() async {