vim-patch:9.1.0991: v:stacktrace has wrong type in Vim9 script

Problem:  v:stacktrace has wrong type in Vim9 script.
Solution: Change the type to t_list_dict_any.  Fix grammar in docs.
          (zeertzjq)

closes: vim/vim#16390

6655bef330

runtime/doc/builtin.txt

@@ -4186,12 +4186,12 @@ getstacktrace()                                                *getstacktrace()*
 		Returns the current stack trace of Vim scripts.
 		Stack trace is a |List|, of which each item is a |Dictionary|
 		with the following items:
-		    funcref	The funcref if the stack is at the function,
-				otherwise this item is not exist.
+		    funcref	The funcref if the stack is at a function,
+				otherwise this item is omitted.
 		    event	The string of the event description if the
-				stack is at autocmd event, otherwise this item
-				is not exist.
-		    lnum	The line number of the script on the stack.
+				stack is at an autocmd event, otherwise this
+				item is omitted.
+		    lnum	The line number in the script on the stack.
 		    filepath	The file path of the script on the stack.
 
                 Return: ~

runtime/lua/vim/_meta/vimfn.lua

@@ -3773,12 +3773,12 @@ function vim.fn.getscriptinfo(opts) end
 --- Returns the current stack trace of Vim scripts.
 --- Stack trace is a |List|, of which each item is a |Dictionary|
 --- with the following items:
----     funcref  The funcref if the stack is at the function,
----     otherwise this item is not exist.
+---     funcref  The funcref if the stack is at a function,
+---     otherwise this item is omitted.
 ---     event  The string of the event description if the
----     stack is at autocmd event, otherwise this item
----     is not exist.
----     lnum  The line number of the script on the stack.
+---     stack is at an autocmd event, otherwise this
+---     item is omitted.
+---     lnum  The line number in the script on the stack.
 ---     filepath  The file path of the script on the stack.
 ---
 --- @return table[]

src/nvim/eval.lua

@@ -4676,12 +4676,12 @@ M.funcs = {
       Returns the current stack trace of Vim scripts.
       Stack trace is a |List|, of which each item is a |Dictionary|
       with the following items:
-          funcref	The funcref if the stack is at the function,
-      		otherwise this item is not exist.
+          funcref	The funcref if the stack is at a function,
+      		otherwise this item is omitted.
           event	The string of the event description if the
-      		stack is at autocmd event, otherwise this item
-      		is not exist.
-          lnum	The line number of the script on the stack.
+      		stack is at an autocmd event, otherwise this
+      		item is omitted.
+          lnum	The line number in the script on the stack.
           filepath	The file path of the script on the stack.
     ]=],
     name = 'getstacktrace',

test/old/testdir/test_stacktrace.vim

@@ -1,5 +1,7 @@
 " Test for getstacktrace() and v:stacktrace
 
+source vim9.vim
+
 let s:thisfile = expand('%:p')
 let s:testdir = s:thisfile->fnamemodify(':h')
 
@@ -34,7 +36,7 @@ func Test_getstacktrace()
   source Xscript1
   call Xfunc1()
   call AssertStacktrace([
-        \ #{funcref: funcref('Test_getstacktrace'), lnum: 35, filepath: s:thisfile},
+        \ #{funcref: funcref('Test_getstacktrace'), lnum: 37, filepath: s:thisfile},
         \ #{funcref: funcref('Xfunc1'), lnum: 5, filepath: Filepath('Xscript1')},
         \ #{funcref: funcref('Xfunc2'), lnum: 4, filepath: Filepath('Xscript2')},
         \ ], g:stacktrace)
@@ -61,7 +63,7 @@ func Test_getstacktrace_event()
   source Xscript1
   source Xscript2
   call AssertStacktrace([
-       \ #{funcref: funcref('Test_getstacktrace_event'), lnum: 62, filepath: s:thisfile},
+       \ #{funcref: funcref('Test_getstacktrace_event'), lnum: 64, filepath: s:thisfile},
        \ #{event: 'SourcePre Autocommands for "*"', lnum: 7, filepath: Filepath('Xscript1')},
        \ #{funcref: funcref('Xfunc'), lnum: 4, filepath: Filepath('Xscript1')},
        \ ], g:stacktrace)
@@ -98,10 +100,33 @@ func Test_vstacktrace()
   endtry
   call assert_equal([], v:stacktrace)
   call AssertStacktrace([
-       \ #{funcref: funcref('Test_vstacktrace'), lnum: 95, filepath: s:thisfile},
+       \ #{funcref: funcref('Test_vstacktrace'), lnum: 97, filepath: s:thisfile},
        \ #{funcref: funcref('Xfunc1'), lnum: 5, filepath: Filepath('Xscript1')},
        \ #{funcref: funcref('Xfunc2'), lnum: 4, filepath: Filepath('Xscript2')},
        \ ], stacktrace)
 endfunc
 
+func Test_zzz_stacktrace_vim9()
+  let lines =<< trim [SCRIPT]
+  var stacktrace = getstacktrace()
+  assert_notequal([], stacktrace)
+  for d in stacktrace
+    assert_true(has_key(d, 'lnum'))
+  endfor
+  try
+    throw 'Exception from s:Func'
+  catch
+    assert_notequal([], v:stacktrace)
+    assert_equal(len(stacktrace), len(v:stacktrace))
+    for d in v:stacktrace
+      assert_true(has_key(d, 'lnum'))
+    endfor
+  endtry
+  [SCRIPT]
+  call CheckDefSuccess(lines)
+  " FIXME: v:stacktrace is not cleared after the exception handling, and this
+  " test has to be run as the last one because of this.
+  " call assert_equal([], v:stacktrace)
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab