* lib/gdb.exp(gdb_step_for_stub): New function.

	* lib/gdb.exp(gdb_step_for_stub): New function.
	(gdb_run_cmd): Look for gdb,do_reload_on_run target feature--if it
	exists, reload the executable and do a "continue" instead of
	doing a jump.
	(runto_main): Use gdb_step_for_stub.

	* gdb.base/break.exp: Use gdb_step_for_stub. Also, rename certain
 	tests to have unique names.
	* gdb.base/callfuncs.exp: Ditto.
	* gdb.base/commands.exp: Ditto.
	* gdb.base/default.exp: Ditto.
	* gdb.base/help.exp: Ditto.
	* gdb.base/list.exp: Ditto.
	* gdb.base/opaque.exp: Ditto.
	* gdb.base/printcmds.exp: Ditto. Use a loop to emit multiple
	similar tests.

	* gdb.base/setshow.c: Add set_debug_traps/breakpoint calls.
	* gdb.c++/cplusfuncs.cc: Ditto.
	* gdb.c++/virtfunc.cc: Ditto.

	* config/monitor.exp: Keep track of the last file we saw, rather
	than trying to get the info from gdb.

	* gdb.fortran/types.exp: Move comment to previous line.

Fixes for TCL8 miscellaneous problems.