- language to define type equality rigorously - language for type guards - fixed language for break statements
- language to define type equality rigorously
- language for type guards
- fixed language for break statements

Also: Removed uses of "we" and replaced by impersonal language.
Minor cosmetic changes.

DELTA=237  (160 added, 34 deleted, 43 changed)
OCL=18620
CL=18800

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