Add keyboard shortcuts:

'thread backtrace'     => Control-C b (gud-bt)     "Show stack for the current thread."
'thread backtrace all' => Control-C B (gud-bt-all) "Show stacks for all the threads."

Change the function name of one existing shortcut:

'breakpoint list"      => Control-C l (gud-listb)  "List all breakpoints."

llvm-svn: 117933