test: Match gccgo error messages.
test: Match gccgo error messages.

Another case where gccgo and gc report similar but not
identical errors for a recursive interface.

bug251.go:11: error: invalid recursive interface

R=rsc
CC=golang-dev
http://codereview.appspot.com/2094041

scirelli/scirelli-go,d0f/go-zh,rflanagan/reginaldflanagan-project1,Triskite/willstone-goclone,glycerine/jeaten-go-arrayof-structof,mhennings/marcohennings-go,Triskite/willstone-goclone,sanjosh/sanjos100-tipc,npe9/noahevans-go9,npe9/noahevans-go9,sanjosh/sanjos100-tipc,webfd/go-zh,scirelli/scirelli-go,sanjosh/sanjos100-tipc,d0f/go-zh,rdp/rogerpack2005-golang,scirelli/scirelli-go,scirelli/scirelli-go,scirelli/scirelli-go,bryanxu/go-zh,bryanxu/go-zh,npe9/noahevans-go9,rflanagan/reginaldflanagan-project1,webfd/go-zh,Triskite/willstone-goclone,d0f/go-zh,bryanxu/go-zh,Triskite/willstone-goclone,bryanxu/go-zh,webfd/go-zh,sanjosh/sanjos100-tipc,rdp/rogerpack2005-golang,d0f/go-zh,Triskite/willstone-goclone,Triskite/willstone-goclone,mhennings/marcohennings-go,rflanagan/reginaldflanagan-project1,d0f/go-zh,webfd/go-zh,glycerine/jeaten-go-arrayof-structof,rflanagan/reginaldflanagan-project1,Triskite/willstone-goclone,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,mhennings/marcohennings-go,rflanagan/reginaldflanagan-project1,sanjosh/sanjos100-tipc,rdp/rogerpack2005-golang,webfd/go-zh,scirelli/scirelli-go,mhennings/marcohennings-go,webfd/go-zh,rdp/rogerpack2005-golang,rdp/rogerpack2005-golang,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,sanjosh/sanjos100-tipc,mhennings/marcohennings-go,webfd/go-zh,glycerine/jeaten-go-arrayof-structof,Triskite/willstone-goclone,mhennings/marcohennings-go,rdp/rogerpack2005-golang,d0f/go-zh,webfd/go-zh,rdp/rogerpack2005-golang,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,glycerine/jeaten-go-arrayof-structof,rdp/rogerpack2005-golang,scirelli/scirelli-go,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,npe9/noahevans-go9,bryanxu/go-zh,sanjosh/sanjos100-tipc,npe9/noahevans-go9,npe9/noahevans-go9,d0f/go-zh,npe9/noahevans-go9,scirelli/scirelli-go,glycerine/jeaten-go-arrayof-structof,glycerine/jeaten-go-arrayof-structof,sanjosh/sanjos100-tipc,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,d0f/go-zh,npe9/noahevans-go9