Merge branch '6.0' into 7.0

# Conflicts:
#	Version.props

Author: alex-kulakov

ChangeLog/6.0.10_Z_Final.txt

@@ -0,0 +1,2 @@
+[main] Fixed certain cases of NRE happened on Domain build due to views in extracted schema
+[main] Fixed NotSupportedException appeared on x86 architecture when DateTimeOffset is used in entites

Orm/Xtensive.Orm/Orm/Upgrade/Internals/CatalogCloner.cs

@@ -158,7 +158,9 @@ private void CloneViews(Schema newSchema, Schema sourceSchema)
         var newView = newSchema.CreateView(sourceView.Name);
         CopyDbName(newView, sourceView);
         newView.CheckOptions = sourceView.CheckOptions;
-        newView.Definition = (SqlNative) sourceView.Definition.Clone();
+        if (sourceView.Definition != null) {
+          newView.Definition = (SqlNative) sourceView.Definition.Clone();
+        }
         CloneViewColumns(newView, sourceView);
         CloneIndexes(newView, sourceView);
       }

Orm/Xtensive.Orm/Tuples/Packed/PackedFieldAccessor.cs

@@ -578,7 +578,11 @@ protected override void Encode(DateTimeOffset value, long[] values, int offset)
 
     private static unsafe int GetSize()
     {
-      return sizeof(DateTimeOffset);
+      // Depending on architecture, x86 or x64, the size of DateTimeOffset is either 12 or 16 respectively.
+      // Due to the fact that Rank calculation algorithm expects sizes to be equal to one of the power of two
+      // it returns wrong rank value for size 12 (bitsize = 96) which causes wrong choice of Encode/Decode methods.
+      // Setting it to 16 helps to solve Rank problem.
+      return sizeof(long) * 2;
     }
 
     public DateTimeOffsetFieldAccessor()