Warn about overriding operator== but not hashCode.

dart/tests/compiler/dart2js/analyze_helper.dart

Index: dart/tests/compiler/dart2js/analyze_helper.dart
diff --git a/dart/tests/compiler/dart2js/analyze_helper.dart b/dart/tests/compiler/dart2js/analyze_helper.dart
index c3e6729506de0ff985e053ae43b906bc7decc633..b21d5cf83f036d70181cc166daab26b6afe51944 100644
--- a/dart/tests/compiler/dart2js/analyze_helper.dart
+++ b/dart/tests/compiler/dart2js/analyze_helper.dart
@@ -27,6 +27,7 @@ import '../../../sdk/lib/_internal/compiler/implementation/source_file_provider.
 
 class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
   bool hasWarnings = false;
+  bool hasHint = false;
   bool hasErrors = false;
 
   Map<String, Map<String, int>> whiteListMap
@@ -46,6 +47,7 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
 
   void checkResults() {
     Expect.isFalse(hasWarnings);
+    Expect.isFalse(hasHint);
     Expect.isFalse(hasErrors);
     Expect.isTrue(checkWhiteListUse());
     reportWhiteListUse();
@@ -102,6 +104,13 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
       }
       hasWarnings = true;
     }
+    if (kind == api.Diagnostic.HINT) {
+      if (checkWhiteList(uri, message)) {
+        // Suppress white listed warnings.

[kasperl, 2013/06/26 09:22:28]

warnings -> hints.

[ahe, 2013/06/26 10:45:51]

Done.

+        return;
+      }
+      hasHint = true;
+    }
     if (kind == api.Diagnostic.ERROR) {
       if (checkWhiteList(uri, message)) {
         // Suppress white listed warnings.