Hi,

  this small patch adds autocompletion for convenience variables
for 'print' and 'set' commands. I guess other commands using the
same completers will be benefited as well.

I could not find any testsuite where to add tests for this; if there are,
please let me know.


2014-05-20  Daniel Gutson  <daniel.gutson@tallertechnologies.com>

gdb/
        * c-exp.y (exp): Do not create an internal var when completing.
        * completer.c (expression_completer): Call complete_internalvar.
        * symtab.c (make_symbol_completion_list): Call complete_internalvar.