New analyzer snapshot.

pkg/analyzer/lib/src/generated/java_junit.dart

 library java.junit;
 
 import 'package:unittest/unittest.dart' hide fail;
 import 'package:unittest/unittest.dart' as _ut show fail;
 
 
 class JUnitTestCase {
   void setUp() {}
   void tearDown() {}
   static void fail(String msg) {
     _ut.fail(msg);
   }
   static void assertTrue(bool x) {
     expect(x, isTrue);
   }
   static void assertTrueMsg(String msg, bool x) {
     expect(x, isTrueMsg(msg));
   }
   static void assertFalse(bool x) {
     expect(x, isFalse);
   }
   static void assertFalseMsg(String msg, bool x) {
     expect(x, isFalseMsg(msg));
   }
   static void assertNull(x) {
     expect(x, isNull);
   }
+  static void assertNullMsg(String msg, x) {
+    expect(x, isNullMsg(msg));
+  }
   static void assertNotNull(x) {
     expect(x, isNotNull);
   }
   static void assertNotNullMsg(String msg, x) {
     expect(x, isNotNullMsg(msg));
   }
   static void assertEquals(expected, actual) {
     expect(actual, equals(expected));
   }
   static void assertEqualsMsg(String msg, expected, actual) {
@@ skipping 71 matching lines @@
   final String msg;
   const _IsFalseWithMessage(this.msg);
   bool matches(item, Map matchState) {
     return item == false;
   }
   Description describe(Description mismatchDescription) {
     return mismatchDescription.replace(msg);
   }
 }
 
+Matcher isNullMsg(String msg) => new _IsNullWithMessage(msg);
+class _IsNullWithMessage extends Matcher {
+  final String msg;
+  const _IsNullWithMessage(this.msg);
+  bool matches(item, Map matchState) {
+    return item == null;
+  }
+  Description describe(Description mismatchDescription) {
+    return mismatchDescription.replace(msg);
+  }
+}
+
 Matcher isNotNullMsg(String msg) => new _IsNotNullWithMessage(msg);
 class _IsNotNullWithMessage extends Matcher {
   final String msg;
   const _IsNotNullWithMessage(this.msg);
   bool matches(item, Map matchState) {
     return item != null;
   }
   Description describe(Description mismatchDescription) {
     return mismatchDescription.replace(msg);
   }
 }