displaysize(tty) after close(tty) segfaults

[tkf]

It'd be nice if displaysize(tty) after close(tty) can throw an exception rather than segfault. MWE:

julia> tty = Base.TTY(fd(Base.Filesystem.open("/proc/self/fd/1", Base.Filesystem.JL_O_WRONLY)))
Base.TTY(RawFD(0x00000016) open, 0 bytes waiting)

julia> displaysize(tty)
(43, 114)

julia> close(tty)

julia> displaysize(tty)

signal (11): Segmentation fault
in expression starting at REPL[4]:1
uv_tty_get_winsize at /workspace/srcdir/libuv/src/unix/tty.c:274
displaysize at ./stream.jl:478
jfptr_displaysize_2966 at /home/takafumi/repos/watch/julia/usr/lib/julia/sys.so (unknown line)
jl_apply at /home/takafumi/repos/watch/julia/src/julia.h:1694 [inlined]
do_call at /home/takafumi/repos/watch/julia/src/interpreter.c:369
eval_value at /home/takafumi/repos/watch/julia/src/interpreter.c:458
eval_stmt_value at /home/takafumi/repos/watch/julia/src/interpreter.c:409 [inlined]
eval_body at /home/takafumi/repos/watch/julia/src/interpreter.c:799
jl_interpret_toplevel_thunk at /home/takafumi/repos/watch/julia/src/interpreter.c:911
jl_toplevel_eval_flex at /home/takafumi/repos/watch/julia/src/toplevel.c:814
jl_toplevel_eval_flex at /home/takafumi/repos/watch/julia/src/toplevel.c:764
jl_toplevel_eval_in at /home/takafumi/repos/watch/julia/src/toplevel.c:843
eval at ./boot.jl:331
eval_user_input at /home/takafumi/repos/watch/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:107
run_backend at /home/takafumi/.julia/packages/Revise/SefCg/src/Revise.jl:1042
#85 at ./task.jl:358
jl_apply at /home/takafumi/repos/watch/julia/src/julia.h:1694 [inlined]
start_task at /home/takafumi/repos/watch/julia/src/task.c:687
unknown function (ip: (nil))
Allocations: 14143307 (Pool: 14139964; Big: 3343); GC: 14

[vtjnash]

Duplicate of #26687