[Bug cli/11920] New: tab completion might stall cli without any feedback

["mjw at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

When one presses <tab> at the "wrong" time it can feel like gdb stalls. It would
be nice if gdb gave some feedback it is doing lots of lookups.

Example from a c++ program:

(gdb) break std::<tab>
[...nothing for about 3 seconds - not obviously killable...]
Display all 14472 possibilities? (y or n)

-- 
           Summary: tab completion might stall cli without any feedback
           Product: gdb
           Version: archer
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cli
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: mjw at redhat dot com
                CC: gdb-prs at sourceware dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=11920

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