Infer Null for return type of functions with empty returns.

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

Index: pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
index b320ee14dc53a4db89384dc0662975a2f85efba8..b101aa64df0ac2e7a8257988cc988782561c74c7 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -107,14 +107,26 @@ class AstInferredTypeTest extends AbstractResynthesizeTest
 
   @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
@@ -553,6 +565,18 @@ var b = a.m();
 
   @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();
   }