add the ability to associate 'category' names with clang diagnostics and diagnostic groups.  This allows the compiler to group  diagnostics together (e.g. "Logic Warning",  "Format String Warning", etc) like the static analyzer does.   This is not exposed through anything in the compiler yet.
add the ability to associate 'category' names with clang diagnostics
and diagnostic groups.  This allows the compiler to group 
diagnostics together (e.g. "Logic Warning", 
"Format String Warning", etc) like the static analyzer does.  
This is not exposed through anything in the compiler yet.



git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@103050 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx