Infer Null for return type of functions with empty returns.

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

 // Copyright (c) 2016, 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.resynthesize_ast_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/dart/element/element.dart';
@@ skipping 89 matching lines @@
   }
 
   @override
   @failingTest
   void test_blockBodiedLambdas_basic_topLevel() {
     super.test_blockBodiedLambdas_basic_topLevel();
   }
 
   @override
   @failingTest
-  void test_blockBodiedLambdas_doesNotInferBottom_asyncStar_topLevel() {
-    super.test_blockBodiedLambdas_doesNotInferBottom_asyncStar_topLevel();
+  void test_blockBodiedLambdas_inferBottom_async_topLevel() {
+    super.test_blockBodiedLambdas_inferBottom_async_topLevel();
   }
 
   @override
   @failingTest
-  void test_blockBodiedLambdas_doesNotInferBottom_syncStar_topLevel() {
-    super.test_blockBodiedLambdas_doesNotInferBottom_syncStar_topLevel();
+  void test_blockBodiedLambdas_inferBottom_asyncStar_topLevel() {
+    super.test_blockBodiedLambdas_inferBottom_asyncStar_topLevel();
   }
 
   @override
+  @failingTest
+  void test_blockBodiedLambdas_inferBottom_sync_topLevel() {
+    super.test_blockBodiedLambdas_inferBottom_sync_topLevel();
+  }
+
+  @override
+  @failingTest
+  void test_blockBodiedLambdas_inferBottom_syncStar_topLevel() {
+    super.test_blockBodiedLambdas_inferBottom_syncStar_topLevel();
+  }
+
+  @override
   @failingTest
   void test_blockBodiedLambdas_LUB_topLevel() {
     super.test_blockBodiedLambdas_LUB_topLevel();
   }
 
   @override
   @failingTest
   void test_blockBodiedLambdas_nestedLambdas_topLevel() {
     super.test_blockBodiedLambdas_nestedLambdas_topLevel();
   }
@@ skipping 415 matching lines @@
   }
 
   @override
   @failingTest
   void test_inferLocalFunctionReturnType() {
     super.test_inferLocalFunctionReturnType();
   }
 
   @override
   @failingTest
+  void test_inferredType_blockBodiedClosure_noArguments() {
+    super.test_inferredType_blockBodiedClosure_noArguments();
+  }
+
+  @override
+  @failingTest
+  void test_inferredType_blockClosure_noArgs_noReturn() {
+    super.test_inferredType_blockClosure_noArgs_noReturn();
+  }
+
+  @override
+  @failingTest
   void test_inferredType_opAssignToProperty_prefixedIdentifier() {
     super.test_inferredType_opAssignToProperty_prefixedIdentifier();
   }
 
   @override
   @failingTest
   void test_inferredType_opAssignToProperty_prefixedIdentifier_viaInterface() {
     super
         .test_inferredType_opAssignToProperty_prefixedIdentifier_viaInterface();
   }
@@ skipping 368 matching lines @@
   }
 
   @override
   DartSdk createDartSdk() => AbstractContextTest.SHARED_MOCK_SDK;
 
   @override
   TestSummaryResynthesizer encodeDecodeLibrarySource(Source source) {
     return _encodeLibrary(source);
   }
 }