upgrade dependencies, including migration to package:test

test/checker/inferred_type_test.dart

 // Copyright (c) 2015, 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.
 
 /// Tests for type inference.
 library dev_compiler.test.inferred_type_test;
 
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 import 'package:dev_compiler/src/testing.dart';
 
-import '../test_util.dart';
-
 void main() {
-  configureTest();
-
   test('infer type on var', () {
     // Error also expected when declared type is `int`.
     testChecker({
       '/main.dart': '''
       test1() {
         int x = 3;
         x = /*severe:StaticTypeError*/"hi";
       }
     '''
     });
 
     // If inferred type is `int`, error is also reported
     testChecker({
       '/main.dart': '''
       test2() {
         var x = 3;
         x = /*severe:StaticTypeError*/"hi";
       }
     '''
     });
   });
 
-  // Error when declared type is `int` and assigned null.
-  testChecker({
-    '/main.dart': '''
-      test1() {
-        int x = 3;
-        x = /*severe:StaticTypeError*/null;
-      }
-    '''
-  }, nonnullableTypes: <String>['int', 'double']);
+  test('Error when declared type is `int` and assigned null.', () {
+    testChecker({
+      '/main.dart': '''
+        test1() {
+          int x = 3;
+          x = /*severe:StaticTypeError*/null;
+        }
+      '''
+    }, nonnullableTypes: <String>['int', 'double']);
+  });
 
-  // Error when inferred type is `int` and assigned null.
-  testChecker({
-    '/main.dart': '''
-      test1() {
-        var x = 3;
-        x = /*severe:StaticTypeError*/null;
-      }
-    '''
-  }, nonnullableTypes: <String>['int', 'double']);
+  test('Error when inferred type is `int` and assigned null.', () {
+    testChecker({
+      '/main.dart': '''
+        test1() {
+          var x = 3;
+          x = /*severe:StaticTypeError*/null;
+        }
+      '''
+    }, nonnullableTypes: <String>['int', 'double']);
+  });
 
-  // No error when declared type is `num` and assigned null.
-  testChecker({
-    '/main.dart': '''
-      test1() {
-        num x = 3;
-        x = null;
-      }
-    '''
+  test('No error when declared type is `num` and assigned null.', () {
+    testChecker({
+      '/main.dart': '''
+        test1() {
+          num x = 3;
+          x = null;
+        }
+      '''
+    });
   });
 
   test('do not infer type on dynamic', () {
     testChecker({
       '/main.dart': '''
       test() {
         dynamic x = 3;
         x = "hi";
       }
     '''
@@ skipping 1433 matching lines @@
           Function2<int, int> l1 = /*info:InferredTypeClosure*/(x) => /*info:DynamicInvoke should be pass*/x+1;
           Function2<int, String> l2 = /*info:InferredTypeClosure should be severe:StaticTypeError*/(x) => x;
           Function2<int, String> l3 = /*info:InferredTypeClosure should be severe:StaticTypeError*/(x) => /*info:DynamicInvoke should be pass*/x.substring(3);
           Function2<String, String> l4 = /*info:InferredTypeClosure*/(x) => /*info:DynamicInvoke should be pass*/x.substring(3);
         }
       }
       '''
     }, inferDownwards: true, wrapClosures: false);
   });
 }