eliminate unnecessary uses of octave:: namespace qualifier Affected files: graphics-init.cc, octave-qscintilla.cc, octave-qobject.h, qt-application.h, workspace-view.cc, call-stack.cc, dynamic-ld.cc, error.cc, error.h, event-manager.h, fcn-info.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics-toolkit.cc, input.cc, load-path.cc, oct-hist.cc, oct-stream.cc, pager.cc, stack-frame.cc, symscope.cc, sysdep.cc, __ode15__.cc, cdef-class.cc, ov-fcn-handle.cc, ov.cc, ov.h, oct-parse.yy, pt-classdef.h, pt-eval.cc, Range.cc, Range.h, dir-ops.h, file-stat.cc, lo-sysdep.cc, lo-utils.cc, oct-glob.cc, and url-transfer.cc.

--- a/libinterp/corefcn/stack-frame.cc	Mon Oct 05 13:57:00 2020 -0400
+++ b/libinterp/corefcn/stack-frame.cc	Mon Oct 05 15:19:15 2020 -0400
@@ -1164,7 +1164,7 @@
 
     while (frame)
       {
-        octave::symbol_info_list symbols = frame->all_variables ();
+        symbol_info_list symbols = frame->all_variables ();
 
         octave_scalar_map ws;