Fix SQL Server foreign key generation.
Fix SQL Server foreign key generation.

The SQL was FUBAR, so we weren't actually picking up the *target* of foreign
key constraint.

With this change, the DbMetal-generated file from a SQL Server Northwind
actually compiles (whereas before it would have compiler errors).


git-svn-id: 1800f71f313d917366f95485fa960eed04b40598@1290 33146b6e-df29-0410-a1ca-39be37fb9416

Sectoid/dblinq,sharique/dbinq,Sectoid/dblinq,sharique/dbinq