Replace ga->ga_len == 0 checks with GA_EMPTY(ga)

Used Coccinelle to perform the changes

@@
expression E;
@@

<...
(
// E.ga_len == 0 is isomorphic to !E.ga_len
- E.ga_len == 0
+ GA_EMPTY(&E)
|
- E->ga_len == 0
+ GA_EMPTY(E)
)
...>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/nvim/fold.c b/src/nvim/fold.c
index 8320b905b2..d12d364f49 100644
--- a/src/nvim/fold.c
+++ b/src/nvim/fold.c
@@ -1013,7 +1013,7 @@ void cloneFoldGrowArray(garray_T *from, garray_T *to)
 
   ga_init(to, from->ga_itemsize, from->ga_growsize);
 
-  if (from->ga_len == 0)
+  if (GA_EMPTY(from))
     return;
 
   ga_grow(to, from->ga_len);
@@ -1302,7 +1302,7 @@ static void deleteFoldEntry(garray_T *gap, int idx, int recursive)
   fold_T      *nfp;
 
   fp = (fold_T *)gap->ga_data + idx;
-  if (recursive || fp->fd_nested.ga_len == 0) {
+  if (recursive || GA_EMPTY(&fp->fd_nested)) {
     /* recursively delete the contained folds */
     deleteFoldRecurse(&fp->fd_nested);
     --gap->ga_len;