bug#1435: C-Click on a mode in the mode-line causes crash in MacOS X.

[Jason Schadel]

When a Control-Click is made on a mode in the mode-line, emacs crashes  
with the error below.

Emacs Version Info
---------- Begin ----------
In GNU Emacs 23.0.60.1 (i386-apple-darwin9.5.0, NS apple-appkit-949.35)
 of 2008-11-26 on Jason-Schadels-MacBook-Pro.local
Windowing system distributor `Apple', version  
97.112.112.108.101.45.97.112.112.107.105.116.45.57.52.57.46.51.53
configured using `configure  '--with-ns' 'CFLAGS=-g''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
---------- End ----------

Debug Output
---------- Begin ----------
2008-11-26 09:23:10.993 Emacs[53741:813] *** -[EmacsView  
writeSelectionToPasteboard:types:]: unrecognized selector sent to  
instance 0x6c0cb50
2008-11-26 09:23:10.994 Emacs[53741:813] An uncaught exception was  
raised
2008-11-26 09:23:10.994 Emacs[53741:813] *** -[EmacsView  
writeSelectionToPasteboard:types:]: unrecognized selector sent to  
instance 0x6c0cb50
2008-11-26 09:23:10.995 Emacs[53741:813] *** Terminating app due to  
uncaught exception 'NSInvalidArgumentException', reason: '*** - 
[EmacsView writeSelectionToPasteboard:types:]: unrecognized selector  
sent to instance 0x6c0cb50'
2008-11-26 09:23:10.995 Emacs[53741:813] Stack: (
    2445988171,
    2434797115,
    2446017354,
    2446010700,
    2446010898,
    213437042,
    213435210,
    35150243,
    35150157,
    35760590,
    35148029,
    16540974,
    16539500,
    16539341,
    16539181,
    16538726,
    16538435,
    2702344,
    2706698,
    2718407,
    1470803,
    1429763,
    1477375,
    1414943,
    2056321,
    1412871,
    2054797,
    1412752,
    1410163,
    1410684,
    1403269,
    11666
)

Program received signal SIGTRAP, Trace/breakpoint trap.
0x91cacff4 in ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ ()
---------- End ----------

Full Backtrace
---------- Begin ----------
(gdb) bt full
#0  0x91cacff4 in ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ ()
No symbol table info available.
#1  0x91200e3b in objc_exception_throw ()
No symbol table info available.
#2  0x91cb434a in -[NSObject doesNotRecognizeSelector:] ()
No symbol table info available.
#3  0x91cb294c in ___forwarding___ ()
No symbol table info available.
#4  0x91cb2a12 in __forwarding_prep_0___ ()
No symbol table info available.
#5  0x0cb8ca72 in CopyCocoaTextSelection ()
No symbol table info available.
#6  0x0cb8c34a in QuickAddExamineContext ()
No symbol table info available.
#7  0x021859a3 in TContextualMenuPlugin::ExamineContext ()
No symbol table info available.
#8  0x0218594d in TContextualMenuPluginList::ExamineContext ()
No symbol table info available.
#9  0x0221a9ce in _ContextualMenuInsertItems ()
No symbol table info available.
#10 0x021850fd in _ContextualMenuInsertItems ()
No symbol table info available.
#11 0x00fc652e in _NSPopUpCarbonMenu3 ()
No symbol table info available.
#12 0x00fc5f6c in _NSPopUpCarbonMenu2 ()
No symbol table info available.
#13 0x00fc5ecd in _NSPopUpCarbonMenu1 ()
No symbol table info available.
#14 0x00fc5e2d in -[NSCarbonMenuImpl  
_popUpContextMenu:withEvent:forView:withFont:] ()
No symbol table info available.
#15 0x00fc5c66 in -[NSMenu  
_popUpContextMenu:withEvent:forView:withFont:] ()
No symbol table info available.
#16 0x00fc5b43 in -[NSMenu _popUpContextMenu:withEvent:forView:] ()
No symbol table info available.
#17 0x00293c08 in -[EmacsMenu runMenuAt:forFrame:keymaps:]  
(self=0xd722650, _cmd=0x2c3f96, p={x = 1018, y = 27}, f=0x48bb850,  
keymaps=1) at nsmenu.m:735
        view = (EmacsView *) 0x6c0cb50
        e = (NSEvent *) 0xf470410
        event = (NSEvent *) 0xf443ef0
        retVal = 2702481
#18 0x00294d0a in ns_popup_menu (position=87910205, menu=87930821) at  
nsmenu.m:1135
        pmenu = (EmacsMenu *) 0xd722650
        f = (struct frame *) 0x48bb850
        p = {
  x = 1018,
  y = 827
}
        window = 256341252
        x = 2432
        y = 3352
        tem = 92274697
        keymap = 73594421
        title = 100792459
        gcpro1 = {
  next = 0x9123ebf4,
  var = 0x0,
  nvars = 125773824
}
        specpdl_count = 2
        specpdl_count2 = 3
        error_name = 0x0
        keymaps = 1
        wv = (widget_value *) 0xd7225c0
        first_wv = (widget_value *) 0xf493b50
#19 0x00297ac7 in Fx_popup_menu (position=87910205, menu=87930821) at  
nsmenu.m:1922
No locals.
#20 0x00167153 in read_char_x_menu_prompt (nmaps=4, maps=0xbfffebd0,  
prev_event=87910205, used_mouse_menu=0xbfffed78) at keyboard.c:8493
        realmaps = (Lisp_Object *) 0xbfffe970
        value = 128190
        nmaps1 = 1
        mapno = 4
        name = 100792459
#21 0x0015d103 in read_char (commandflag=1, nmaps=4, maps=0xbfffebd0,  
prev_event=87910205, used_mouse_menu=0xbfffed78, end_time=0x0) at  
keyboard.c:2854
        c = 92274697
        count = 1510961
        jmpcount = 2
	local_getcjmp = {2491263, 0, 8099, 1426703, -1073746448, 0, 4,  
-1073746992, -1073747064, -1073747504, 102891551, 658, 1428558,  
92274711, 92274719, 71106591, 102891520, 55}
	save_jump = {-1073747192, 1513827, 92274697, 1, 1, 2502472, 92274697,  
92274697, 3478900, 70873573, 0, 1512657, 100440305, 92274697, 3650717,  
100440305, 73594421, 1951602}
        key_already_recorded = 0
        tem = 1473571
        save = -1073747128
        previous_echo_area_message = 92274697
        also_record = 92274697
        reread = 0
        gcpro1 = {
  next = 0x5800009,
  var = 0x10,
  nvars = 1512315
}
        gcpro2 = {
  next = 0x2,
  var = 0x58071a1,
  nvars = -1073747304
}
        polling_stopped_here = 0
        orig_kboard = (struct kboard *) 0x4846610
#22 0x00168aff in read_key_sequence (keybuf=0xbfffefa4, bufsize=30,  
prompt=92274697, dont_downcase_last=0, can_return_switch_frame=1,  
fix_current_buffer=1) at keyboard.c:9344
        interrupted_kboard = (KBOARD *) 0x4846610
        interrupted_frame = (struct frame *) 0x48bb850
        key = 87910205
        used_mouse_menu = 0
        echo_local_start = 0
        last_real_key_start = 2
        keys_local_start = 2
        local_first_binding = 2
        from_string = 235642243
        count = 2
        t = 2
        echo_start = 0
        keys_start = 0
        nmaps = 4
        nmaps_allocated = 4
        defs = (Lisp_Object * volatile) 0xbfffebb0
        submaps = (Lisp_Object * volatile) 0xbfffebd0
        orig_local_map = 3650693
        orig_keymap = 92274697
        localized_local_map = 1
        first_binding = 2
        first_unbound = 31
        mock_input = 2
        fkey = {
  parent = 71245389,
  map = 71245389,
  start = 2,
  end = 2
}
        keytran = {
  parent = 70733693,
  map = 70733693,
  start = 2,
  end = 2
}
        indec = {
  parent = 71245397,
  map = 71245397,
  start = 2,
  end = 2
}
        shift_translated = 0
        delayed_switch_frame = 92274697
        original_uppercase = -1073746408
        original_uppercase_position = -1
        dummyflag = 0
        starting_buffer = (struct buffer *) 0xc1c5d90
        fake_prefixed_keys = 87910197
        gcpro1 = {
  next = 0x622acd9,
  var = 0x5800009,
  nvars = 2
}
#23 0x0015971f in command_loop_1 () at keyboard.c:1621
        cmd = 102935769
        lose = 32
        nonundocount = 0
	keybuf = {92303801, 87910205, 0, 3250635, -1073746096, -1073745976,  
1492944, -1073745796, 1412030, -1073745912, 1412519, 224649653,  
92274745, -1073745882, 100794081, 152, 163, 125796672, 368690, 232,  
14, 0, 76265552, -1073746208, 1411579, -1073745816, 1411941,  
224649637, -1073745882, 70799261}
        i = 1
        prev_modiff = 9026
        prev_buffer = (struct buffer *) 0xc1c5d90
        already_adjusted = 0
#24 0x001f6081 in internal_condition_case (bfun=0x159271  
<command_loop_1>, handlers=92314385, hfun=0x1589ef <cmd_error>) at  
eval.c:1511
        val = 70799261
        c = {
  tag = 92274697,
  val = 92274697,
  next = 0xbffff16c,
  gcpro = 0x0,
  jmp = {-1073806465, 82, 8098, 2056032, 117522432, 2054597, 0, 0,  
-1073745624, -1073745808, 31, 658, 2056198, -1859256297, 31, 31, 0, 55},
  backlist = 0x0,
  handlerlist = 0x0,
  lisp_eval_depth = 0,
  pdlcount = 2,
  poll_suppress_count = 1,
  interrupt_input_blocked = 0,
  byte_stack = 0x0
}
        h = {
  handler = 92314385,
  var = 92274697,
  chosen_clause = 92274745,
  tag = 0xbffff0a8,
  next = 0x0
}
#25 0x00158f07 in command_loop_2 () at keyboard.c:1338
        val = 8368128
#26 0x001f5a8d in internal_catch (tag=92310457, func=0x158ed2  
<command_loop_2>, arg=92274697) at eval.c:1247
        c = {
  tag = 92310457,
  val = 92274697,
  next = 0x0,
  gcpro = 0x0,
  jmp = {-1859320961, 0, 8098, 2054597, -1859280203, 0, 0, 0,  
-1073745432, -1073745584, 92405791, 662, 2054782, 23, 92274719,  
-1073807329, 92405760, 92405815},
  backlist = 0x0,
  handlerlist = 0x0,
  lisp_eval_depth = 0,
  pdlcount = 2,
  poll_suppress_count = 1,
  interrupt_input_blocked = 0,
  byte_stack = 0x0
}
#27 0x00158e90 in command_loop () at keyboard.c:1317
No locals.
#28 0x00158473 in recursive_edit_1 () at keyboard.c:942
        count = 1
        val = 2071153
#29 0x0015867c in Frecursive_edit () at keyboard.c:1004
        count = 0
        buffer = 92274697
#30 0x00156985 in main (argc=1, argv=0xbffff3c0) at emacs.c:1777
        dummy = 0
        stack_bottom_variable = -65 '\277'
        do_initial_setlocale = 1
        skip_args = 0
        rlim = {
  rlim_cur = 8388608,
  rlim_max = 67104768
}
        no_loadup = 0
        junk = 0x0
        dname_arg = 0x0
---------- End ----------