Match gccgo error messages.
Match gccgo error messages.

bug238.go:11:7: error: invalid constant type
bug238.go:12:7: error: invalid constant type
bug238.go:13:7: error: invalid constant type
bug238.go:14:7: error: invalid constant type
bug238.go:15:7: error: invalid constant type
bug238.go:16:7: error: invalid constant type
bug238.go:17:7: error: invalid constant type

R=rsc
CC=golang-dev
http://codereview.appspot.com/194159

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