Ignore Rule validation checks index as well

Author: alex-kulakov

Orm/Xtensive.Orm/Orm/Configuration/DomainConfiguration.cs

@@ -677,8 +677,8 @@ private void ValidateMappingConfiguration(bool multischema, bool multidatabase)
     private void ValidateIgnoreConfiguration()
     {
       foreach (var ignoreRule in IgnoreRules) {
-        if (string.IsNullOrEmpty(ignoreRule.Table) && string.IsNullOrEmpty(ignoreRule.Column))
-          throw new InvalidOperationException(string.Format(Strings.ExIgnoreRuleXMustBeAppliedToColumnOrTable, ignoreRule));
+        if (string.IsNullOrEmpty(ignoreRule.Table) && string.IsNullOrEmpty(ignoreRule.Column) && string.IsNullOrEmpty(ignoreRule.Index))
+          throw new InvalidOperationException(string.Format(Strings.ExIgnoreRuleXMustBeAppliedToColumnIndexOrTable, ignoreRule));
       }
     }
 

Orm/Xtensive.Orm/Strings.Designer.cs

@@ -2354,8 +2354,8 @@ Error: {1}</value>
   <data name="ExNonLinqCallsAreNotSupportedWithinQueryExecuteDelayed" xml:space="preserve">
     <value>Non-LINQ calls are not supported within Query.ExecuteDelayed</value>
   </data>
-  <data name="ExIgnoreRuleXMustBeAppliedToColumnOrTable" xml:space="preserve">
-    <value>Ignore rule '{0}' must be applied to column or table.</value>
+  <data name="ExIgnoreRuleXMustBeAppliedToColumnIndexOrTable" xml:space="preserve">
+    <value>Ignore rule '{0}' must be applied to column, index or table.</value>
   </data>
   <data name="ExTableXCantBeRemovedDueToForeignKeyYOfIgnoredTableOrColumn" xml:space="preserve">
     <value>Table '{0}' can't be removed due to the foreign key '{1}' of a ignored table or column.</value>