Swap out text_as_varchar on the mssql dialect for the Types tests.
Swap out text_as_varchar on the mssql dialect for the Types tests.

wfxiang08/sqlalchemy,alex/sqlalchemy,ThiefMaster/sqlalchemy,hsum/sqlalchemy,davidfraser/sqlalchemy,EvaSDK/sqlalchemy,itkovian/sqlalchemy,inspirehep/sqlalchemy,Akrog/sqlalchemy,alex/sqlalchemy,epa/sqlalchemy,elelianghh/sqlalchemy,dstufft/sqlalchemy,alex/sqlalchemy,halfcrazy/sqlalchemy,itkovian/sqlalchemy,Cito/sqlalchemy,monetate/sqlalchemy,bootandy/sqlalchemy,epa/sqlalchemy,robin900/sqlalchemy,ThiefMaster/sqlalchemy,bootandy/sqlalchemy,WinterNis/sqlalchemy,sqlalchemy/sqlalchemy,elelianghh/sqlalchemy,olemis/sqlalchemy,brianv0/sqlalchemy,sandan/sqlalchemy,robin900/sqlalchemy,olemis/sqlalchemy,davidfraser/sqlalchemy,monetate/sqlalchemy,wfxiang08/sqlalchemy,j5int/sqlalchemy,inspirehep/sqlalchemy,halfcrazy/sqlalchemy,Cito/sqlalchemy,pdufour/sqlalchemy,dstufft/sqlalchemy,hsum/sqlalchemy,276361270/sqlalchemy,davidjb/sqlalchemy,276361270/sqlalchemy,davidjb/sqlalchemy,pdufour/sqlalchemy,graingert/sqlalchemy,bdupharm/sqlalchemy,graingert/sqlalchemy,Akrog/sqlalchemy,wujuguang/sqlalchemy,wujuguang/sqlalchemy,EvaSDK/sqlalchemy,sandan/sqlalchemy,Cito/sqlalchemy,j5int/sqlalchemy,zzzeek/sqlalchemy,bdupharm/sqlalchemy,brianv0/sqlalchemy,WinterNis/sqlalchemy