patch 8.2.1160: Vim9: memory leak in allocated types

Problem:    Vim9: memory leak in allocated types.
Solution:   Free the type pointers.

src/proto/vim9compile.pro

@@ -1,5 +1,6 @@
 /* vim9compile.c */
 int check_defined(char_u *p, size_t len, cctx_T *cctx);
+void clear_type_list(garray_T *gap);
 type_T *typval2type(typval_T *tv);
 int check_type(type_T *expected, type_T *actual, int give_msg);
 char_u *skip_type(char_u *start);

src/userfunc.c

@@ -1069,10 +1069,7 @@ func_clear_items(ufunc_T *fp)
     VIM_CLEAR(fp->uf_arg_types);
     VIM_CLEAR(fp->uf_def_arg_idx);
     VIM_CLEAR(fp->uf_va_name);
-    while (fp->uf_type_list.ga_len > 0)
+    clear_type_list(&fp->uf_type_list);
-	vim_free(((type_T **)fp->uf_type_list.ga_data)
-						  [--fp->uf_type_list.ga_len]);
-    ga_clear(&fp->uf_type_list);
 
 #ifdef FEAT_LUA
     if (fp->uf_cb_free != NULL)

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1160,
 /**/
     1159,
 /**/

src/vim9compile.c

@@ -321,6 +321,14 @@ alloc_type(garray_T *type_gap)
     return type;
 }
 
+    void
+clear_type_list(garray_T *gap)
+{
+    while (gap->ga_len > 0)
+	vim_free(((type_T **)gap->ga_data)[--gap->ga_len]);
+    ga_clear(gap);
+}
+
     static type_T *
 get_list_type(type_T *member_type, garray_T *type_gap)
 {

src/vim9script.c

@@ -126,7 +126,7 @@ free_imports(int sid)
     }
     ga_clear(&si->sn_imports);
     ga_clear(&si->sn_var_vals);
-    ga_clear(&si->sn_type_list);
+    clear_type_list(&si->sn_type_list);
 }
 
 /*