gdb/ChangeLog: Copyright year update in most files of the GDB Project.
* frame.c (get_prev_frame_1) <UNWIND_INNER_ID>: New variables this_pc_in_block, morestack_msym and morestack_name. Check for "__morestack" minimal symbol there. gdb/testsuite/ * gdb.base/morestack.exp: New file. * gdb.base/morestack.c: New file.