Forgot one of the DiagnosticDescriptors in my analyzer declaration (changeset 1345984)

Src/Diagnostics/Roslyn/Core/Performance/EquatableAnalyzer.cs

@@ -32,7 +32,7 @@ public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
         {
             get
             {
-                return ImmutableArray.Create(ImplementIEquatableDescriptor);
+                return ImmutableArray.Create(ImplementIEquatableDescriptor, OverridesObjectEqualsDescriptor);
             }
         }