Support new import rules.

tests/compiler/dart2js/diagnose_ambiguous_test.dart

Index: tests/compiler/dart2js/diagnose_ambiguous_test.dart
diff --git a/tests/compiler/dart2js/diagnose_ambiguous_test.dart b/tests/compiler/dart2js/diagnose_ambiguous_test.dart
index e026f90da910d38301db98126075f0bd5c6a18b6..cc7d02c380f653d9f2cff93c138d3bbf49778911 100644
--- a/tests/compiler/dart2js/diagnose_ambiguous_test.dart
+++ b/tests/compiler/dart2js/diagnose_ambiguous_test.dart
@@ -9,8 +9,6 @@ import 'memory_source_file_helper.dart';
 import '../../../sdk/lib/_internal/compiler/compiler.dart'
        show Diagnostic;
 
-import 'dart:json';
-
 main() {
   Uri script = currentDirectory.resolve(nativeToUriPath(Platform.script));
   Uri libraryRoot = script.resolve('../../../sdk/');
@@ -37,20 +35,10 @@ main() {
     var expected = [
         'memory:exporter.dart:43:47:Info: "function(hest)" is defined here.'
         ':info',
-        'memory:library.dart:14:19:Info: "class(Fisk)" is (re)exported by '
-        'multiple libraries.:info',
-        'memory:library.dart:30:34:Info: "function(fisk)" is (re)exported by '
-        'multiple libraries.:info',
         'memory:library.dart:41:45:Info: "function(hest)" is defined here.'
         ':info',
-        'memory:main.dart:0:22:Info: "class(Fisk)" is imported here.:info',
-        'memory:main.dart:0:22:Info: "function(fisk)" is imported here.:info',
         'memory:main.dart:0:22:Info: "function(hest)" is imported here.:info',
-        'memory:main.dart:23:46:Info: "class(Fisk)" is imported here.:info',
-        'memory:main.dart:23:46:Info: "function(fisk)" is imported here.:info',
         'memory:main.dart:23:46:Info: "function(hest)" is imported here.:info',
-        'memory:main.dart:59:63:Warning: Duplicate import of "Fisk".:warning',
-        'memory:main.dart:76:80:Error: Duplicate import of "fisk".:error',
         'memory:main.dart:86:90:Error: Duplicate import of "hest".:error'
     ];
     Expect.listEquals(expected, diagnostics);