[PR tui/15933] TUI shows registers of the wrong frame the first time

[PR tui/15933] TUI shows registers of the wrong frame the first time

I've stumbled on this by inspection.

When the TUI's register window is first displayed, it always shows the
registers of the current frame, instead of of the selected frame,
which is obviously bogus.

E.g.,

 (gdb) step             # into "function"
 (gdb) up
 (gdb) tui reg general  # or C-x 2, C-x 2

shows the registers of "function", rather than the caller's.

A subsequent:

 (gdb) frame

or

 (gdb) down
 (gdb) up

can be used as workaround to "fix" it.

gdb/
2013-09-05  Pedro Alves  <palves@redhat.com>

	PR tui/15933
	* tui/tui-regs.c (tui_show_registers): Show registers of the
	selected frame, not the current frame.