(gdb-frame-address): New variable.

(gdb-frame-address): New variable.
(gdb-var-list): Add an element for has_more field.
(gdb-non-stop-handler): Enable pretty printing for STL containers.
(gdb-var-create-handler, gdb-var-list-children-handler-1)
(gdb-var-update-handler-1): Parse output of dynamic variable
objects (STL containers).
(gdb-var-delete-1): Pass var1 as an explicit second argument.
(gdb-get-field): Delete alias.  Use bindat-get-field directly.