refactor(api)!: rename Dictionary => Dict

In the api_info() output:

    :new|put =map(filter(api_info().functions, '!has_key(v:val,''deprecated_since'')'), 'v:val')
    ...

    {'return_type': 'ArrayOf(Integer, 2)', 'name': 'nvim_win_get_position', 'method': v:true, 'parameters': [['Window', 'window']], 'since': 1}

The `ArrayOf(Integer, 2)` return type didn't break clients when we added
it, which is evidence that clients don't use the `return_type` field,
thus renaming Dictionary => Dict in api_info() is not (in practice)
a breaking change.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index 92dc9dc7e3..5a4972ef23 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -503,16 +503,15 @@ void nvim_win_set_hl_ns(Window window, Integer ns_id, Error *err)
 ///                - end_vcol: Ending virtual column index on "end_row",
 ///                            0-based exclusive, rounded up to full screen lines.
 ///                            When omitted include the whole line.
-/// @return  Dictionary containing text height information, with these keys:
+/// @return  Dict containing text height information, with these keys:
 ///          - all: The total number of screen lines occupied by the range.
 ///          - fill: The number of diff filler or virtual lines among them.
 ///
 /// @see |virtcol()| for text width.
-Dictionary nvim_win_text_height(Window window, Dict(win_text_height) *opts, Arena *arena,
-                                Error *err)
+Dict nvim_win_text_height(Window window, Dict(win_text_height) *opts, Arena *arena, Error *err)
   FUNC_API_SINCE(12)
 {
-  Dictionary rv = arena_dict(arena, 2);
+  Dict rv = arena_dict(arena, 2);
 
   win_T *const win = find_window_by_handle(window, err);
   if (!win) {