(gdb-var-create-regexp)

(gdb-var-create-regexp)
(gdb-var-list-children-regexp, gdb-var-update-regexp)
(gdb-var-list-children-regexp-1, gdb-var-update-regexp-1)
(gdb-data-list-register-values-regexp)
(gdb-stack-list-locals-regexp, gdb-stack-list-locals-handler):
Future proof against new fields being added to MI output.
(gdb-send): Don't treat backslashes for program input as
continuations.
(gdb-assembler-handler): Don't use window-start for this handler.
(gdb-frame-handler): Don't change to hollow arrow if overlay
arrow doesn't move to new frame.